largest us cruise ship

• Favorites & Watchlist Find a Cruise Cruise Deals Cruise Ships Destinations Manage My Cruise​ FAQ Perfect Day at CocoCay Weekend Cruises Crown & Anchor Society Cruising Guides Gift Cards Contact Us Royal Caribbean Group
• Back to Main Menu
• Search Cruises " id="rciHeaderSideNavSubmenu-2-1" class="headerSidenav__link" href="/cruises" target="_self"> Search Cruises
• Cruise Deals
• Weekend Cruises
• Last Minute Cruises
• Family Cruises​
• 2024-2025 Cruises
• All Cruise Ships " id="rciHeaderSideNavSubmenu-4-1" class="headerSidenav__link" href="/cruise-ships" target="_self"> All Cruise Ships
• Cruise Dining
• Onboard Activities
• Cruise Rooms
• The Cruise Experience
• All Cruise Destinations " id="rciHeaderSideNavSubmenu-5-1" class="headerSidenav__link" href="/cruise-destinations" target="_self"> All Cruise Destinations
• Cruise Ports
• Shore Excursions
• Perfect Day at CocoCay
• Caribbean Cruises
• Bahamas Cruises​
• Alaska Cruises
• European Cruises​
• Mediterranean Cruises​
• Cruise Planner
• Make a Payment
• Beverage Packages​
• Shore Excursions​
• Dining Packages​
• Royal Gifts
• Check-In for My Cruise
• Update Guest Information
• Book a Flight
• Transportation
• Book a Hotel
• Required Travel Documents
• Redeem Cruise Credit
• All FAQs " id="rciHeaderSideNavSubmenu-7-1" class="headerSidenav__link" href="/faq" target="_self"> All FAQs
• Boarding Requirements
• Future Cruise Credit​
• Travel Documents​
• Check-in​ & Boarding Pass
• Transportation​
• Perfect Day at CocoCay​
• Post-Cruise Inquiries
• Royal Caribbean
• Celebrity Cruises

REVOLUTIONARY ADVENTURE

Symphony of the seas.

Go big on bold when you sail aboard one of the largest cruise ships in the world.

Get ready for a perception remixing, memory maxing mic drop — Symphony of the Seas® is all that and more. It’s your favorite onboard hits, including the ten-story test of courage, Ultimate Abyss℠ and twin FlowRider®* surf simulators, plus revolutionary firsts, like glow-in-the-dark laser tag. And deck-defying attractions aren’t the only things to look forward to when you sail onboard this Oasis Class ship. Symphony of the Seas® is also loaded with delicious ways to tempt your taste buds — like the gameday game changing Playmakers℠ Sports Bar & Arcade — and larger-than-life ways to stay, like the Ultimate Family Suite. Go get your thrill on. 

Tune Into The Sound Of Adventure

Save big on these bestselling itineraries.

{{error.text}} {{error.link.label}}

SIGN UP TO STAY IN THE LOOP

Sign up to receive information about our special offers and deals. You can unsubscribe at any time. For more details about how we use your information, view our Privacy Policy .

THIS IS THE SOUND OF FIRSTS

Get ready for revolutionary new firsts, like glow-in-the-dark  Laser Tag , the gameday game changing  Playmakers℠ Sports Bar & Arcade , and the  Ultimate Family Suite . 

Game Changers

Glow-in-the-dark laser tag, two surf simulators and the tallest slide at sea? You’re going to want to bring your game face.

EXPLORE ONBOARD ACTIVITIES

a foodie fantasy

If you’re craving high-end eats, Symphony of the Seas® hits all the high notes. Fresh caught New England-style seafood, family style Italian from Jamie Oliver and much more.

EXPLORE ONBOARD DINING

MARQUEE SHOWS

Catch jaw-dropping performances on stage, ice, water and air with entertainment that transcends the stage — literally.

EXPLORE SHOWS & ENTERTAINMENT

GET READY TO TURN UP THE CARIBBEAN CRAZE

Get ready for memory-maxing with a whole lot of whoas onboard Oasis Class favorite,  Symphony of the Seas ®. Visit the best of the western and southern Caribbean with adventure-packed itineraries and nonstop island hops sailing from Fort Lauderdale and Cape Liberty — for the first time.

ADVENTURES FROM THE NORTHEAST

For the first time ever,  Symphony of the Seas ® sails from Cape Liberty  to captivating destinations. Kayak past manatees in Orlando. Snorkel in turquoise waters in Nassau . And experience a beach day full of record-breaking thrills and epic ways to chill at Perfect Day at CocoCay  — voted best private island three years running.

EXPLORE CRUISES FROM CAPE LIBERTY

THRILL TOPPING, ISLAND HOPPING

Sun-kissed Caribbean shores are yours to explore onboard  Symphony of the Seas ® sailing from Fort Lauderdale. Go cave chasing in Curaçao  one minute. Then deep dive into Aruba’s colorful underwater world the next. Or savor a famous Jamaican meat patty. And dial up thrills on a zip line ride over the ocean in Labadee  — our gamechanging private destination.

EXPLORE CRUISES FROM FORT LAUDERDALE

MEET THE WORLD'S BIGGEST, BOLDEST SHIPS

These engineering wonders take home awards every year for their cutting-edge design, first-of-their-kind attractions, world class dining and accommodations, and unforgettable experiences. From the tallest slide at sea, to culinary concepts that take guests from Japan to Italy to Wonderland, the world’s largest cruise ships are full of adventures guaranteed to wow every kind of explorer.

EXPLORE OUR OASIS CLASS SHIPS

CRUISE SHIP SYMPHONY OF THE SEAS REVIEWS

Explore more.

Previewing: Promo Dashboard Campaigns

My Personas

Code: ∅.

The 30 Largest Cruise Ships in the World Ranked

Wondering what the largest cruise ship in the world is? You're not alone. These vacation-ready giants of the sea seem to push the boundaries of size year after year. With the biggest ships at sea, though, you're getting way more than just crowds of fellow passengers. Water parks , huge entertainment spaces, dizzying restaurant options, and a wider variety of cabins are all part of how the largest cruise ships are filling all that space.

To help you compare the sizes, we've rounded up and ranked the 30 largest cruise ships in the world by gross tonnage (which is a measure of volume, not weight). We've included other stats, such as passenger capacity (both double occupancy and max occupancy) plus length and beam (the width at the widest point of the vessel).

Keep in mind that this list of biggest cruise ships in the world changes annually, as cruise lines update their fleets. While Royal Caribbean continues to dominate the top (and the bottom) of the list, new entries may surprise you. For example, Princess Cruises has a new ship on the list (the largest ever for that fleet), barely missing the top twenty.

See how your favorite cruise lines and ships measure up this year with our list below.

1. Royal Caribbean Icon of the Seas

Besides taking on the mantle of largest cruise ship in the world, Icon of the Seas is yet another game changer for Royal Caribbean. Its launch in January 2024 heralds a new ship class loaded with new attractions and iconic spaces. It features 20 decks (18 guest-accessible decks), a record-setting six water slides and the largest swimming pool at sea.

The second Icon-class ship, Star of the Seas , is set to sail in 2025.

Icon of the Seas Gross Tonnage : 250,800 GTs

Icon of the Seas Length : 1,198 feet

Icon of the Seas Beam (Maximum) : 213 feet

Icon of the Seas Passenger Capacity (Double/Max) : 5,610/7,600

2. Royal Caribbean Utopia of the Seas

Utopia of the Seas Gross Tonnage : 236,860 GTs

Utopia of the Seas Length : 1,188 feet

Utopia of the Seas Beam (Maximum) : 211 feet

Utopia of the Seas Passenger Capacity (Double/Max) : 5,668/6,509

3. Royal Caribbean Wonder of the Seas

Royal Caribbean's Wonder of the Seas was previously the world's largest cruise ship, starting in January 2022. Its first voyage was in March 2022, becoming the fifth member of Royal's Oasis-class ships. The aptly named Wonder of the Seas has 18 decks (16 guest-accessible decks), 2,867 staterooms and 19 pools.

Wonder of the Seas Gross Tonnage: 235,600 tons

Wonder of the Seas Length: 1,188 feet

Wonder of the Seas Beam (Maximum): 215 feet

Wonder of the Seas Passenger Capacity (Double/Max): 5,734/7,084

4. Royal Caribbean Symphony of the Seas

Royal Caribbean's Symphony of the Seas slips to the fourth position this year, having been the biggest cruise ship in the world from 2018 to 2022. It has 16 guest decks (18 total decks) along with 2,759 staterooms.

Symphony of the Seas Gross Tonnage: 228,081 tons

Symphony of the Seas Length: 1,188 feet

Symphony of the Seas Beam (Maximum): 215.5 feet

Symphony of the Seas Passenger Capacity (Double/Max): 5,518/6,680

5. Royal Caribbean Harmony of the Seas

Royal Caribbean’s Harmony of the Seas , now the fifth-largest cruise ship in the world, was actually the largest cruise ship from 2016 to 2018. Onboard, passengers can find 16 guest decks, 2,747 staterooms and suites and 23 pools and whirlpools.

Harmony of the Seas Gross Tonnage : 226,963 GTs

Harmony of the Seas Length : 1,188 feet

Harmony of the Seas Beam (Maximum) : 215.5 feet

Harmony of the Seas Passenger Capacity (Double/Max) : 5,479/6,687

6. Royal Caribbean Oasis of the Seas

Royal Caribbean's Oasis of the Seas is the flagship of the Oasis class. It made its maiden voyage in 2009, offering 18 total decks (16 guest decks) along with 2,801 staterooms, almost 2,000 of which have balconies.

Oasis of the Seas Gross Tonnage: 226,838 tons

Oasis of the Seas Length: 1,187 feet

Oasis of the Seas Beam (Maximum): 215 feet

Oasis of the Seas Passenger Capacity (Double/Max): 5,602/6,771

7. Royal Caribbean Allure of the Seas

Royal Caribbean Allure of the Seas made its maiden voyage in December 2010. Allure of the Seas has 18 total decks, 16 of which are guest-accessible, and 2,742 staterooms (including 1,796 balcony suites).

Allure of the Seas Gross Tonnage: 225,282 tons

Allure of the Seas Length: 1,187 feet

Allure of the Seas Beam (Maximum): 215 feet

Allure of the Seas Passenger Capacity (Double/Max): 5,484/6,780

8. MSC World Europa

MSC entered the top ten in 2022 when World Europa made its maiden voyage in December of that year. It has 2,700 staterooms, 430,000 square feet of public space, 16 total decks and even an 11-foot dry slide called the Spiral, among the longest dry slide at sea. World Europa is the first of four total ships in MSC's World-class fleet, with the second ship World America set to launch in 2025.

World Europa Gross Tonnage: 215,863 tons

World Europa Length: 1,093 feet

World Europa Beam (Maximum): 151 feet

World Europa Passenger Capacity (Double/Max): 5,400/6,762

9. P&O Arvia

P&O Cruises held its spot on the top ten list of largest cruise ships in the world with an aptly named ship. Arvia is Latin for “from the seashore.” Arvia was launched in 2022 and features 19 decks (15 passenger-accessible decks).

P&O Arvia Gross Tonnage : 185,581 GTs

P&O Arvia Length : 1,132 feet

P&O Arvia Beam (Maximum) : 137 feet

P&O Arvia Passenger Capacity (Double/Max) : 5,200/6,264

10. Costa Cruises Costa Smeralda

Costa Smeralda is the first ship in Costa Cruises' Excellence-class fleet. This premier ship has 20 decks along with 2,614 staterooms and suites onboard. Costa Smeralda was named after a popular tourist destination in Sardinia.

Costa Smeralda Gross Tonnage: 185,010 tons

Costa Smeralda Length: 1,106 feet

Costa Smeralda Beam (Maximum): 138 feet

Costa Smeralda Passenger Capacity (Double/Max): 5,224/6,554

11. Costa Cruises Costa Toscana

Costa Toscana is Costa Smeralda's sister ship, meaning the two ships are identical in size. Toscano launched in March of 2022.

Costa Toscana Gross Tonnage: 185,010 tons

Costa Toscana Length: 1,106 feet

Costa Toscana Beam (Maximum): 138 feet

Costa Toscana Passengers (Double/Max): 5,224/6,554

12. P&O Cruises Iona

P&O Cruises Iona was the first in the line's Excel-class. Iona includes 2,614 cabins and 15 decks accessible to guests.

Iona Gross Tonnage: 184,700 tons

Iona Length: 1,130 feet

Iona Beam (Maximum): 138 feet

Iona Passenger Capacity (Double/Max): 5,200/6,600

13. MSC Euribia

Launched in 2023, MSC Euribia is among the list of LNG-powered ships that are revolutionizing the industry with cleaner operations as it cruises to mostly European ports of call.

MSC Euribia Gross Tonnage: 181,541 GTs

MSC Euribia Length : 1,087 feet

MSC Euribia Beam (Maximum) : 141 feet

MSC Euribia Passenger Capacity (Double/Max) : 4,842/6,334

14. AIDA Cruises AIDAnova

AIDA Cruises AIDAnova is the first launched in the Excellence-class, which also has sister ship AIDAcosma. AIDAnova was built in 2018 and has 16 decks with 2,600 cabins. It was the first ship to be awarded the "Blauer Engel," which is a German environmental label given to green-friendly products and services .

AIDAnova Gross Tonnage: 183,858 tons

AIDAnova Length: 1,106 feet

AIDAnova Beam (Maximum): 138 feet

AIDAnova Passenger Capacity (Double/Max): 5,252/6,654

15. Carnival Jubilee

When Carnival Jubilee arrived in Galveston late in 2023, it became the largest and newest ship Carnival has ever cruised from that port. The ship even features a Texas-style livery. Attractions include the Bolt rollercoaster and a whopping 22 dining options, many of which are included in the cruise fare.

Carnival Jubilee Gross Tonnage : 183,521 GTs

Carnival Jubilee Length : 1,130 feet

Carnival Jubilee Beam (Maximum) : 137 feet

Carnival Jubilee Passenger Capacity (Double/Max) : 5,374/6,631

16. Carnival Celebration

Carnival's Celebration , which launched in November 2022, is a sister ship to the famed Mardi Gras and a "celebration" for the cruise line's 50th birthday year. The Celebration cruise ship, which is fueled by cleaner burning LNG, has 20 decks and 2,687 staterooms and suites.

Carnival Celebration Gross Tonnage: 180,800 tons

Carnival Celebration Length: 1,130 feet

Carnival Celebration Beam: 138 feet

Carnival Celebration Passenger Capacity (Double/Max): 5,282/6,500

17. AIDA Cruises AIDAcosma

AIDA Cruises AIDAcosma, the second in the Excellence-class, was first released in December 2021. It has 20 decks and 2,626 passenger cabins, which includes suites.

AIDAcosma Gross Tonnage: 183,200 tons

AIDAcosma Length: 1,105 feet

AIDAcosma Beam (Maximum): 138 feet

AIDAcosma Passenger Capacity (Double/Max): 5,228/6,600

18. MSC Grandiosa

MSC Grandiosa is a part of the Meraviglia Plus-class, which currently has five sailing ships. Onboard, there are 18 decks (15 of which are passenger-accessible) and 2,405 staterooms onboard.

MSC Grandiosa Gross Tonnage: 181,541 tons

MSC Grandiosa Length: 1,087 feet

MSC Grandiosa Beam (Maximum): 141 feet

MSC Grandiosa Passenger Capacity (Double/Max): 4,842/6,334

19. MSC Virtuosa

MSC Virtuosa , which is another member of the Meraviglia-Plus class, first set sail in May 2021. It is easily one of the largest in MSC's fleet (along with sister ship Grandiosa), having 2,421 cabins on 15 passenger-accessible decks (18 decks total).

MSC Virtuosa Gross Tonnage: 181,000 tons

MSC Virtuosa Length: 1,092 feet

MSC Virtuosa Beam: 141 feet

MSC Virtuosa Passenger Capacity (Double/Max): 4,842/6,334

20. Carnival Mardi Gras

Carnival Mardi Gras first debuted in 1972 and was a trailblazing ship. Its preliminary focus was on festive fun for all guests (hence the name), which was unlike any other cruise ship at the time. The unique onboard ambiance continues today on the most recent Mardis Gras, which was launched in 2021, and has 17 passenger decks, 2,641 staterooms and a rollercoaster.

Carnival Mardi Gras Gross Tonnage: 181,800 tons

Carnival Mardi Gras Length: 1,130 feet

Carnival Mardi Gras Beam (Maximum): 138 feet

Carnival Mardi Gras Passenger Capacity (Double/Max): 5,282/6,631

21. Sun Princess

Until Utopia of the Seas launches in 2024, Sun Princess will be among the twenty largest cruise ships afloat on the world’s oceans. The ship’s first cruise is set for February 2024, and will debut Princess Cruises ' largest number of dining options , offering guests 29 choices.

Sun Princess Gross Tonnage : 175,500 GTs

Sun Princess Length : 1,133 feet

Sun Princess Beam (Maximum) : 155 feet

Sun Princess Passenger Capacity (Double/Max) : 4,324/5,189

22. MSC Meraviglia

MSC Meraviglia is the first ship in MSC's Meraviglia-class and received the "8 Golden Pearls" award, which recognizes sustainable and environmental stewardship. This meritable ship has 18 decks, 15 of which are accessible to guests, and 2,244 total staterooms. Look for her at port at Ocean Cay MSC Marine Reserve .

MSC Meraviglia Gross Tonnage: 171,598 tons

MSC Meraviglia Length: 1,036 feet

MSC Meraviglia Beam (Maximum): 141 feet

MSC Meraviglia Passenger Capacity (Double/Max): 4,500/5,714

23. MSC Bellissima

MSC Bellissima is yet another member of MSC's Meraviglia-class to make our list. It first set sail in 2019 and has 18 decks (15 available to guests) and 2,217 cabins.

MSC Bellissima Gross Tonnage: 171,598 tons

MSC Bellissima Length: 1,036 feet MSC

Bellissima Beam (Maximum): 141 feet

MSC Bellissima Passenger Capacity (Double/Max): 4,500/5,686

24. MSC Seashore

MSC Seashore first debuted in August 2020 and is one of only two ships in the Seaside EVO-class. Onboard, there are 2,270 staterooms and 15 public-accessible decks.

MSC Seashore Gross Tonnage: 170,412 tons

MSC Seashore Length: 1,112 feet

MSC Seashore Beam (Maximum): 135 feet

MSC Seashore Passenger Capacity (Double/Max): 4,540/5,877

25. MSC Seascape

MSC Seascape debuted in December 2022 easily making our list of the biggest cruise ships in the world. This impressive ship has 20 decks with 2,270 staterooms in 12 different categories. The ship has its own unique experience called Robotron , the first robotic arm thrill ride on the sea. Seascape currently sails from Miami , and in 2025 will offer MSC cruises from Galveston for the first time.

MSC Seascape Gross Tonnage: 169,400 tons

MSC Seascape Length: 1,060 feet

MSC Seascape Beam (Maximum): 135 feet

MSC Seascape Passenger Capacity (Double/Max): 4,560/5,877

26. Royal Caribbean Spectrum of the Seas

Royal Caribbean Spectrum of the Seas is the first ship in the Quantum Ultra-class, which is a subset of Royal's Quantum-class . Spectrum of the Seas has 16 total decks (14 guest decks) and 2,137 staterooms.

Spectrum of the Seas Gross Tonnage: 169,379 tons

Spectrum of the Seas Length: 1,139 feet

Spectrum of the Seas Beam (Maximum): 161.5 feet

Spectrum of the Seas Passenger Capacity (Double/Max): 4,246/5,622

27. Norwegian Encore

Norwegian Cruise Line (NCL) Encore is a part of the four-ship Breakaway Plus-class , a class known for mimicking small cities with numerous outdoor activities. NCL Encore has a total of 20 decks and 2,043 staterooms.

Norwegian Encore Gross Tonnage: 169,116 tons

Norwegian Encore Length: 1,094 feet

Norwegian Encore Beam (Maximum): 157.9 feet

Norwegian Encore Passenger Capacity (Double/Max): 3,998/N/A

28. Royal Caribbean Quantum of the Seas

Royal Caribbean's Quantum of the Seas is the flagship of the Quantum class cruising Asia and the South Pacific half the year, before spending summer in Alaska . It made its maiden voyage in 2014 and holds 16 total decks (14 guest decks) and 2,094 staterooms.

Quantum of the Seas Gross Tonnage: 168,666 tons

Quantum of the Seas Length: 1,141 feet

Quantum of the Seas Beam (Maximum): 162 feet

Quantum of the Seas Passenger Capacity (Double/Max): 4,180/4,905

29. Royal Caribbean Anthem of the Seas

Royal Caribbean Anthem of the Seas is the second ship in the five-ship Quantum-class. Anthem of the Seas debuted in 2015 and has 16 decks (14 guest decks) along with 2,090 staterooms.

Anthem of the Seas Gross Tonnage: 168,666 tons

Anthem of the Seas Length: 1,141 feet

Anthem of the Seas Beam (Maximum): 162 feet

Anthem of the Seas Passenger Capacity (Double/Max): 4,180/4,905

30. Royal Caribbean Ovation of the Seas

Royal Caribbean Ovation of the Seas made its first voyage in 2016, which made it the third ship in the Quantum-class. This ship has 16 decks (14 guest decks) and 2,091 staterooms.

Ovation of the Seas Gross Tonnage: 168,666 tons

Ovation of the Seas Length: 1,138 feet

Ovation of the Seas Beam (Maximum): 160 feet

Ovation of the Seas Passenger Capacity (Double/Max): 4,180/4,905

© 1995— 2024 , The Independent Traveler, Inc.

Watch CBS News

A look inside the Icon of the Seas, the world's biggest cruise ship, as it prepares for voyage

By Kris Van Cleave , Analisa Novak

January 18, 2024 / 12:14 PM EST / CBS News

Royal Caribbean is redefining the cruise industry with its latest ship, the Icon of the Seas. This $2 billion floating resort is largely booked until 2026.

Spanning nearly 1,200 feet, the cruise ship has 20 decks, which makes the Icon of the Seas the world's largest cruise ship.

It's a city at sea, accommodating up to 7,600 passengers in 2,805 staterooms and nearly 10,000 people, including the crew. The ship offers different experiences that include seven pools — one is the largest on any ship — the world's first onboard water park with six water slides, theaters, a casino and over 40 dining and drinking spots.

Jay Schneider, Royal Caribbean's Chief Product Innovation Officer, says the cruise ship is more than just its amenities.

"It's really about iconic experiences," he said.

And despite its massive size, Schneider said the ship is designed to avoid feeling overcrowded.

"We have purposely designed the ship to give more space for people," he said. "We believe, even at 7,500 guests, it won't feel to you like your entire hometown has joined the ship," said Schneider.    

Luxury comes at a price on the Icon. A weeklong Caribbean cruise costs about $3,500 for two people in an average stateroom. For those seeking more luxury, the Ultimate Family Townhouse – a three-story suite complete with touchscreen tables and a slide – can go for up to $100,000 per trip. The Royal Loft, aimed at high-rolling adults, offers two bedrooms, a private hot tub, and a spacious balcony starting at $40,000.

Colleen McDaniel, editor-in-chief at Cruise Critic, said that bigger ships benefit both passengers and cruise lines.

"It means more people can experience something. It means that there's a lot more amenities and activities onboard the cruise ship," McDaniel said. "The more people they can put on a cruise ship, of course, the better business they do, the more money they make."

Kevin Curran says the Icon took his breath away. Having followed the ship's construction for over a year, the Oregon resident said he's thrilled to be on its inaugural cruise from Miami.

"The more I watched the videos, the more I understood this was something special," he said.

Cruising is surging in popularity. Last year, passenger volume outpaced pre-pandemic numbers, and this year is expected to hit a new high of 36 million as spending on experiences has climbed 65% since 2019.

From the bridge, Captain Hendrik Loy is overseeing what amounts to a three-day test drive to the Bahamas.

"There is still fine-tuning that needs to take place," said Loy.

The Icon also champions environmental responsibility. It's powered by liquefied natural gas, treats its own waste, and produces its own water.

Kris Van Cleave is CBS News' senior transportation and national correspondent based in Phoenix.

More from CBS News

Possible TikTok ban leaves some small businesses concerned for their survival

The hidden struggles of the sandwich generation

Grizzly bears to be restored to U.S. region where they were wiped out

Gold watch found on body of Titanic's richest passenger is for sale

• Election 2024
• Entertainment
• Newsletters
• Photography
• Personal Finance
• AP Investigations
• AP Buyline Personal Finance
• AP Buyline Shopping
• Press Releases
• Israel-Hamas War
• Russia-Ukraine War
• Global elections
• Asia Pacific
• Latin America
• Middle East
• Election Results
• Delegate Tracker
• AP & Elections
• Auto Racing
• 2024 Paris Olympic Games
• Movie reviews
• Book reviews
• Personal finance
• Financial Markets
• Business Highlights
• Financial wellness
• Artificial Intelligence
• Social Media

The world’s largest cruise ship has 20 decks, 7 pools and would cover almost 4 city blocks

The ship is the size of almost four city blocks and runs nearly 1,200 feet (365 meters) from bow to stern. AP Video by Daniel Kozin.

FILE - The Icon of the Seas, the world’s largest cruise ship, sits docked after arriving to its home port in Miami, Wednesday, Jan. 10, 2024. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics. (AP Photo/Rebecca Blackwell, File)

• Copy Link copied

FILE - Icon of the Seas, the world’s largest cruise ship, sits at dock as it prepares for its inaugural public voyage later this month, Thursday, Jan. 11, 2024, at PortMiami in Miami. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics. (AP Photo/Rebecca Blackwell, File)

FILE - Waterslides are seen atop a deck overlooking floors of rooms aboard Icon of the Seas, the world’s largest cruise ship, during a media day preview as it prepares for its inaugural public voyage later this month, Thursday, Jan. 11, 2024, in Miami. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics. (AP Photo/Rebecca Blackwell, File)

FILE - Employees and visitors walk in the Royal Promenade area of Icon of the Seas, the world’s largest cruise ship, during a media day preview as it prepares for its inaugural public voyage later this month, Thursday, Jan. 11, 2024, at PortMiami in Miami. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics.(AP Photo/Rebecca Blackwell, File)

Inter Miami soccer player Lionel Messi, center, bumps fists with a member of the Red Hot Chilli Pipers bagpipe band, left, during a naming ceremony for Royal Caribbean International’s new cruise ship, Icon of the Seas, Tuesday, Jan. 23, 2024, in Miami. Inter Miami CF has formed a partnership with the cruise line Royal Caribbean International. At right is Jason Liberty, president and CEO of the Royal Caribbean Group. (AP Photo/Lynne Sladky)

MIAMI (AP) — The world’s largest cruise ship — the size of almost four city blocks — is set to begin its maiden voyage Saturday as it leaves from the Port of Miami.

Royal Caribbean’s Icon of the Seas runs nearly 1,200 feet (365 meters) from bow to stern.

The ship, which is leaving South Florida for its first seven-day island-hopping voyage through the tropics, was officially christened Tuesday with help from soccer legend Lionel Messi and his Inter Miami teammates.

At a glance

The Icon of the Seas:

• can carry up to 7,600 passengers and 2,350 crew members

The ship has:

• six waterslides
• seven swimming pools
• an ice-skating rink
• more than 40 restaurants, bars and lounges

“Icon of the Seas is the culmination of more than 50 years of dreaming, innovating and living our mission – to deliver the world’s best vacation experiences responsibly,” Royal Caribbean Group President and CEO Jason Liberty said earlier this week. “She is the ultimate multigenerational family vacation, forever changing the status quo in family travel and fulfilling vacation dreams for all ages on board.”

The ship sets sail as Royal Caribbean’s cruises are having a moment online. Since December, the company’s 9-month “Ultimate World Cruise” has captivated — and confused — a following of avid watchers on social media.

Millions are following the journey through the eyes of the passengers, as they live and post their lives aboard a vessel they’ll be on for nearly a year. If it sounds like a reality show, that’s exactly what some watchers have turned it into.

When the Icon of the Seas was first revealed in October 2022, the ship spurred the single largest booking day and the highest volume booking week in Royal Caribbean’s then 53-year history, according to the cruise line.

A dancer performs in front of Inter Miami soccer player Lionel Messi, second from left, seated, during an event on the world’s largest cruise ship Icon of the Seas, Tuesday, Jan. 23, 2024, in Miami. The MLS soccer team Inter Miami CF has formed a partnership with the cruise line Royal Caribbean International. (AP Photo/Lynne Sladky)

The Icon of the Seas is divided into eight neighborhoods across 20 decks. The ship includes six waterslides, seven swimming pools, an ice skating rink, a theater and more than 40 restaurants, bars and lounges. The ship can carry up to 7,600 passengers at maximum capacity, along with 2,350 crew members.

It is powered by six dual-fuel engines, which can be powered by liquefied natural gas (LNG), a fuel alternative that the Cruise Lines International Association says reduces sulfur and greenhouse gas emissions. However, some environmentalists worry LNG-powered ships increase methane emissions . Other say that vacationers generate eight times more carbon on a cruise than they do on land.

Royal Caribbean says every kilowatt used on the Icon of the Seas “is scrutinized for energy efficiencies and emission reductions.”

Protect Your Trip »

The 21 largest cruise ships in the world.

Book your next cruise vacation on one of these floating megaresorts.

The Largest Cruise Ships in the World

Courtesy of Royal Caribbean International

With every year comes bigger and grander cruise ships.

Just when you think cruise ships can't get any larger, a major cruise line unveils yet another longer, taller and grander state-of-the-art vessel – with the capacity to carry the population of a small town. To put the size of today's megaships into perspective: They often stretch three times longer than a 120-yard football field, and some feature nearly two dozen decks or measure more than 215 feet wide.

So, if you're looking for a vacation aboard a large-scale vessel, consider booking a voyage on one of the biggest cruise ships in the world. With cutting-edge technology and entertainment, world-class dining, and endless attractions and activities for cruisers of all ages, you may not even want to leave the ship. Here are the biggest cruise ships, arranged by gross tonnage.

• 1. Royal Caribbean Icon of the Seas
• 2. Royal Caribbean Utopia of the Seas
• 3. Royal Caribbean Wonder of the Seas
• 4. Royal Caribbean Symphony of the Seas
• 5. Royal Caribbean Harmony of the Seas
• 6. Royal Caribbean Oasis of the Seas
• 7. Royal Caribbean Allure of the Seas
• 8. MSC World Europa
• 9. Costa Smeralda
• 10. Costa Toscana
• 11. P&O Cruises Arvia
• 12. AIDAcosma
• 13. P&O Cruises Iona
• 14. AIDAnova
• 15. Carnival Jubilee
• 16. Carnival Celebration
• 17. MSC Euribia
• 18. MSC Virtuosa
• 19. Carnival Mardi Gras
• 20. MSC Meraviglia
• 21. Norwegian Encore

Find your perfect cruise

Royal Caribbean Icon of the Seas

Length: 1,198 feet

Width: 213 feet

Gross tons: 250,800

Maximum number of passengers: 7,600

Icon of the Seas will be the largest cruise ship afloat when it debuts in January 2024. The next-level megaship is Royal Caribbean 's first Icon-class vessel and the first of three ships powered by liquefied natural gas, or LNG, which is considered a more sustainable alternative to other fuel options. The ship will have 2,805 staterooms and carry up to 2,350 crew. There's no end to the fun with eight unique neighborhoods, including the new Surfside: a stay-all-day space designed specifically for families.

Other features on the ship include seven pools, nine whirlpools and six record-breaking waterslides. There are also more than 20 new dining venues, such as the swanky Empire Supper Club, which features an eight-course tasting menu; the AquaDome Market, the line's first food hall; and sushi restaurant Izumi in the Park. Cruisers will also find other international cuisine, including Japanese, Mexican and Italian fare, as well as The Lemon Post, the Surfside Eatery and Pier 7 in the Surfside neighborhood.

Read: The Newest Royal Caribbean Ships

Royal Caribbean Utopia of the Seas

Length: 1,188 feet

Width: 211 feet

Gross tons: 236,860

Maximum passengers: 6,788

Royal Caribbean's first LNG-powered Oasis-class ship will sail its debut voyage in July 2024. The new ship will have 2,834 staterooms and up to 2,290 crew members, as well as eight neighborhoods to keep passengers entertained. Ten complimentary dining venues include the line's new food truck concept, The Spare Tire, which serves up handheld eats on the pool deck. The ship will also feature sloping beach-entry and resort-style pools, plus three Lime & Coconut bars on the outdoor deck.

In total, there are more than 40 dining options, bars and lounges on Utopia of the Seas. Many of Royal Caribbean's specialty dining and bar favorites are returning, such as Chops Grille, Giovanni's Italian Kitchen & Wine Bar, Rising Tide Bar and Vue Bar. Guests will also find familiar entertainment offerings with rock climbing walls, the AquaTheater, Splashaway Bay, laser tag, mini-golf, the Sports Court, Studio B and much more. With two casinos, five pools and a visit to private island Perfect Day at CocoCay, you'll never run out of things to do.

Read: The Top New Cruise Ships

Royal Caribbean Wonder of the Seas

Michel Verdure | Courtesy of Royal Caribbean International

Gross tons: 235,600

Maximum passengers: 7,084

Royal Caribbean's current largest ship at sea, Wonder of the Seas , first set sail in March 2022. The Oasis-class vessel has 2,867 staterooms and carries as many as 2,204 crew members. While you may get lost on this ship, you'll never be bored. Features include eight unique neighborhoods – such as Central Park, the Boardwalk, and the new Suite Class neighborhood, an exclusive space for suite guests.

Take advantage of the AquaTheater, an outdoor live entertainment venue with a 30-foot diving platform and incredible ocean views. Wonder Playscape is an underwater-themed outdoor space for kids filled with slides, climbing walls, games and more. You can also enjoy a few of Royal Caribbean's Oasis-class favorites, such as the FlowRider surf simulator, the rock climbing wall or laser tag at the Battle for Planet Z. If you dare, head into the Ultimate Abyss: Billed as the tallest waterslide at sea, it towers 150 feet above sea level and features an exhilarating 13-second ride through 10 stories of dark, winding tunnels.

When hunger strikes, dine at your pick of more than 20 complimentary and specialty restaurants, including the new Mason Jar Southern Restaurant & Bar. If you're craving a cold beer, a cocktail or a cup of Starbucks coffee, you'll have roughly a dozen bars and lounges at your disposal.

Read:  The Top Party Cruises

Royal Caribbean Symphony of the Seas

Width: 215.5 feet

Gross tons: 228,081

Maximum passengers: 6,680

Royal Caribbean's Symphony of the Seas , another Oasis-class ship, debuted in April 2018. This ship features 2,759 passenger staterooms and accommodates 2,200 crew members. There are seven distinct neighborhoods, four pools, roughly 20 restaurants (about half of which are specialty venues), and about a dozen bars and lounges. The ship even boasts two robotic bartenders that whip up drinks at the Bionic Bar.

Adults can enjoy Broadway-style shows in the onboard theaters and major international sports games at Playmakers Sports Bar & Arcade. Meanwhile, kids can cool down at the Splashaway Bay water park, soar on a zip line nine decks high through the Boardwalk neighborhood, try out rock climbing or attend a show at the AquaTheater.

Read:  Royal Caribbean vs. Carnival

Royal Caribbean Harmony of the Seas

Gross tons: 226,963

Maximum passengers: 6,687

Another Oasis-class ship, Royal Caribbean's Harmony of the Seas has been sailing since May 2016. The vessel features 2,747 staterooms and up to 2,200 crew members. Cruisers have plenty of places to dine thanks to eight complimentary venues – including the main dining room and Windjammer Marketplace, a globally inspired buffet – as well as nine specialty restaurants serving everything from burgers and shakes to Italian fare. The Boardwalk, one of the ship's seven neighborhoods, is a favorite spot for cruisers; it contains casual eateries, retail shops and carnival games.

Harmony of the Seas also has Splashaway Bay, the Ultimate Abyss waterslide and a trio of slides called The Perfect Storm. In the evening, don't miss a pre-dinner cocktail at the Rising Tide Bar, which offers a ride between the Central Park neighborhood and the Royal Promenade with dazzling skylight views. Sit back and sip your drink while the entire bar slowly floats between the decks.

Royal Caribbean Oasis of the Seas

Simon Brooke | Courtesy of Royal Caribbean International

Length: 1,187 feet

Width: 215 feet

Gross tons: 226,838

Maximum passengers: 6,771

Royal Caribbean's Oasis of the Seas was the largest cruise ship in the world when it was launched in 2009. The line's debut Oasis-class ship is nearly five times bigger than the Titanic by gross tonnage; it has 2,801 staterooms and carries 2,109 crew members.

Oasis of the Seas was reimagined in 2019, with many added amenities that are on newer Oasis-class ships, such as FlowRider simulators, the Perfect Storm waterslides, the Ultimate Abyss and Playmakers Sports Bar & Arcade. Across the ship's seven distinct neighborhoods, you'll also find state-of-the-art technology such as VOOM, billed as the fastest internet connection on the high seas – plus exciting live performances and theater productions, laser tag, escape rooms and more.

Royal Caribbean Allure of the Seas

Gross tons: 225,282

Maximum passengers: 6,826

Embarking for the first time in 2010, Allure of the Seas was Royal Caribbean's second Oasis-class vessel. The ship underwent a refurbishment in 2015. Allure of the Seas has 2,748 staterooms and 2,054 crew. Onboard highlights include seven neighborhoods, four pools, and several whirlpools and hot tubs, plus more than 20 dining venues and too many bars and lounges to count.

There are also plenty of entertainment options for guests of all ages, including an ice skating rink, the Sports Court, a nine-deck-high zip line, two rock climbing walls and two FlowRider simulators (a Royal Caribbean favorite). Kids will especially enjoy the interactive H2O Zone Water Park. Adults on this ship will appreciate Broadway productions like "Mamma Mia!," aerial acrobatic performances in Oceanaria (an original AquaTheater production) and '70s disco dance parties. If you find yourself on board for business reasons, rest assured that the ship's conference facilities can host as many as 1,394 guests.

Find a Royal Caribbean cruise on GoToSea.

MSC World Europa

Courtesy of MSC Cruises

Length: 1,093 feet

Width: 154 feet

Gross tons: 215,863

Maximum passengers: 6,762

MSC World Europa was one of the most anticipated new cruise ships when it launched in December 2022 as the first vessel in the line's MSC World-class fleet. It's also the first LNG-propelled ship by MSC Cruises , reaching a maximum cruising speed of 22.7 knots.

The ship's futuristic interior and exterior design features a 341-foot-long promenade. Half the promenade is covered with the Meraviglia-class LED sky screens, while the other half is open-air and offers ocean views. MSC World Europa features 2,626 staterooms and can house 2,138 crew members. As a special touch, each passenger deck is named after an international city, including London, Paris, Lisbon and Rome.

The ship is divided into distinct areas, with a quiet zen district for adults and a family zone that has bumper cars and roller skating. At the fleet's largest onboard water park, younger cruisers will find a twisty, stainless steel tunnel slide towering 11 decks high at the center of the ship. Luna Park Arena, the ship's 300-seat multifunction entertainment venue, can accommodate almost any performance or event.

When you're exhausted from all of the action, grab a bite to eat at one of 13 restaurants or a drink at a selection of bars and cafes. Then, take time to relax and unwind with a signature treatment at the Balinese-inspired MSC Aurea Spa. For an all-inclusive VIP experience during your voyage, book stateroom accommodations in the MSC Yacht Club. This exclusive part of the ship boasts premium suites, a separate pool, a private restaurant and lounge, butler service, and other amenities.

Costa Smeralda

Courtesy of Costa Cruises

Length: 1,106 feet

Width: 138 feet

Gross tons: 185,000

Maximum passengers: 6,554

Costa Smeralda was the first of the two Excellence-class vessels in the Costa Cruises fleet. The vessel debuted in 2019 as the Italian cruise line's largest ship to date. It was also the line's first vessel to use LNG power at sea and in port. The ship has 2,612 staterooms and can carry as many as 1,678 crew members.

Cruisers will never go hungry or thirsty, thanks to the 11 restaurants and snack bars plus 19 bars and lounges on Smeralda . One of the most notable dining venues on board is Archipelago, which serves innovative cuisine created by three world-renowned chefs. If you're interested in culinary pursuits, join other passengers for a cooking class at sea in the Food LAB. When it comes to entertainment, centrally located Colosseo – modeled after the piazzas across Italy – is the place to go for socializing and live performances. What's more, the ship also has 13 pools and hot tubs, an aqua park, the Beauty Spa Solemio, and the Squok Club for kids ages 3 to 11.

Costa Toscana

Costa Toscana, Costa Cruises' newest flagship and the second Excellence-class vessel in the fleet, set sail on its debut voyage in March 2022. Similar in size and passenger capacity to Costa Smeralda, Toscana is also LNG-powered. This vessel has 2,663 staterooms, and there can be up to 1,678 crew members on board.

Similar to Smeralda, Colosseo is the centerpiece of Toscana; you'll find live entertainment and themed bars in this area. There are 11 restaurants and snack bars plus 19 bars and lounges on the ship. For a refreshing aperitif with a view, head to the Aperol Spritz Bar, which features special beach cocktails. Another dining highlight is Sushino at Costa, the line's new sushi bistro. After dinner, take in unparalleled views of the sea along the Volare Skywalk, the highest point of the ship, which towers more than 200 feet above sea level.

Explore Costa Cruises deals on GoToSea.

P&O Cruises Arvia

Courtesy of P&O Cruises

Length: 1,130 feet

Maximum passengers: 5,200

Arvia joined the P&O fleet as sister ship to Iona in December 2022. It is also LNG-powered, has 2,614 cabins and carries up to 1,800 crew. The family-friendly ship offers guests many firsts, including Altitude, a new activity area with an escape room, a high-ropes experience, the Splash Valley aqua zone, the Sports Arena and much more.

Arvia has 30 bars and restaurants. New dining venues include the American-inspired 6th Street Diner and Green & Co. feat. Mizuhana, which focuses on sushi and plant-based dishes. For entertainment, plan to see the line's production of "The Official Take That Musical," an adaptation of London West End musical "The Band." Guests can also head to the dome beneath the SkyDome retractable roof for live performances, aerial displays, movies on the giant SeaScreen and DJ parties under the starry skies.

Tips on Trips and Expert Picks Newsletter

Travel tips, vacation ideas and more to make your next vacation stellar.

Sign up to receive the latest updates from U.S News & World Report and our trusted partners and sponsors. By clicking submit, you are agreeing to our Terms and Conditions & Privacy Policy .

Courtesy of AIDA Cruises

Gross tons: 184,600

Maximum passengers: 6,654

The sister ship to AIDAnova, AIDAcosma set sail in early 2022. The partly LNG-powered AIDA Cruises vessel has 2,732 staterooms and the capacity for up to around 1,500 crew members. With 17 restaurants and 23 bars and cafes, AIDAcosma offers passengers a seemingly endless number of venues to dine and imbibe. Other onboard attractions include a four-deck outdoor area, complete with an infinity pool and an expansive area for sunbathing; an indoor playground with a bouldering wall and ropes course; the Body & Soul Spa; and a 360-degree stage at the Theatrium.

P&O Cruises Iona

Length: 1,129 feet

Gross tons: 184,000

P&O Cruises' Iona, which launched in spring 2021, has the distinction of being the first LNG-powered British cruise ship. The family-friendly vessel has 2,614 cabins and carries 1,800 crew members. Iona's top features include the two-story SkyDome, a gin distillery, four pools, 10 entertainment venues, and 30 restaurants and bars offering a wide variety of food and beverage options.

With selections ranging from casual eateries to gelaterias to Indian- and British-inspired cuisine at Sindhu, you won't get bored with the restaurant choices. For an especially unique meal, dine and sip wine while watching aerial performances in the Grand Atrium at The Glass House. Or, enjoy dinner at The Limelight Club, an adults-only supper club venue featuring vocal performances and other live music. After dinner, check out the entertainment around the ship, including aerial productions in the Grand Atrium, guest and crew shows in Headliners, late night dancing in The Club House, and performances in partnership with the entertainment company Creativiva in the SkyDome.

Gross tons: 183,900

When German line AIDA Cruises' first Helios-class ship, AIDAnova, debuted in December 2018, it was the first LNG-powered cruise ship in the world. The ship is equipped with 2,626 staterooms, including the two-deck Penthouse Suite, and carries around 1,500 crew members. You won't miss this ship when it's docked in port: It features the line's signature exterior design, with bold red lips at the ship's bow and blue-and-yellow eyes on the port and starboard sides.

While on board, passengers can check out 17 restaurants, along with 23 bars and lounges; party the night away at the Beach Club; and take in live performances on the 360-degree stage in the Theatrium. When it's time to relax, head to the Body & Soul Spa, where you can book a massage, spend time in one of the hot tubs or saunas, take a dip in the private pool, and chill out on the private spa sun deck.

Carnival Jubilee

Width: 137 feet

Gross tons: 183,521

Maximum passengers: 6,631

Carnival Jubilee, as sister ship to Carnival Celebration and Carnival Mardi Gras, will offer many of the same features and amenities as its two predecessors when it launches in December 2023. The new vessel will have 2,687 staterooms, 1,735 crew and six zones of fun. Currents and The Shores are new to Jubilee . Currents is inspired by the underworld of the ocean with mermaids and sea monsters; it's designed with new bars, restaurants, music venues and high-tech spaces, including a wave-shaped LED ceiling and six LED windows that virtually take guests under the sea. The Shores is all about the outdoors, inspired by beaches and boardwalks. Cruisers can grab a slice of pizza at Coastal Slice, a hot dog at Beach Buns and a cocktail at Marina Bar.

On Jubilee, you'll also find Carnival Cruise Line favorites such as BOLT, the first and fastest roller coaster at sea, as well as Waterworks, the onboard water park with twin racing slides, three spiraling slides and more. The line's "next-level fun" ship will also include familiar eateries and lounges like Shaquille O'Neal's Big Chicken, Guy's Pig & Anchor Bar-B-Que Smokehouse, Cucina del Capitano, Fahrenheit 555 Steakhouse and more.

Carnival Celebration

Courtesy of Carnival Cruise Line

Carnival Celebration sailed its inaugural cruise in November 2022. Carnival's second-newest ship at sea is LNG-powered and the second in the line's Excel class, with 2,687 staterooms and as many as 1,735 crew. Guests will find new attractions to enjoy on the ship, such as the partnership with the Kennedy Space Center at Space Cruisers: This program is designed for children ages 2 to 11 at Camp Ocean.

Adults can check out the new bar at Latitudes, which features specialty cocktails and outdoor scenery through the virtual windows. Celebration has a variety of complimentary dining venues, including Shaq's Big Chicken, Guy's Burger Joint and Mexican favorites at BlueIguana Cantina. There is also a selection of specialty restaurants like Emeril's Bistro 1397, Rudi's Seagrill, the Steakhouse and Bonsai Teppanyaki. For action and 360-degree views of the ocean from the top of the ship, take a spin around the track on the BOLT roller coaster.

Compare Carnival Cruises on GoToSea.

MSC Euribia

Length: 1,087 feet

Width: 141 feet

Gross tons: 181,541

Maximum passengers: 6,327

MSC Euribia, the newest MSC Cruises ship, debuted in June 2023. The line's second LNG-powered vessel – and the fifth Meraviglia-class ship – has 2,419 cabins and can carry as many as 1,711 crew members. The ship's hull features Alex Flämig's artwork "#SaveTheSea" to highlight the company's dedication to preserving the marine ecosystem.

On board Euribia , guests will find five pools and 11 dining venues, offering everything from sushi and teppanyaki to Latin American street food. There are also 21 bars and lounges, the MSC Aurea Spa, the Ocean Cay Aquapark, luxury retail shopping and more. Two additional highlights are the longest – and most impressive – LED Dome at Sea, which covers the ceiling of Galleria Euribia, and the reimagined Carousel Lounge. The beautiful, updated space features floor-to-ceiling windows, outdoor terraces and cozy seating to enjoy live entertainment, including performances by one of the largest big bands at sea.

MSC Virtuosa

Maximum passengers: 6,334

This vessel launched in 2021 as a sister ship to MSC Grandiosa , the line's other Meraviglia Plus-class ship. MSC Virtuosa has 2,421 staterooms and carries around 1,704 crew members. It offers cruisers 11 dining venues plus 21 bars and lounges. At the heart of the ship, Galleria Virtuosa houses the largest shopping area on a cruise ship, with more than 12,500 square feet of retail space. In this area, you'll also find entertainment venues, restaurants and cocktail bars. And don't forget to look up: An impressive LED dome, one of the longest at sea, spans the ceiling of the promenade.

Another highlight to check out during your voyage is the MSC Starship Club, which features Rob, the first humanoid robotic bartender on a cruise ship. The multilingual expert mixologist even tells jokes and will show you a dance move or two. After all the indoor fun, head outside for a cool dip in one of MSC Virtuosa's five pools or take a ride on the slide at the Savannah Aquapark.

Book an MSC Cruise on GoToSea.

Carnival Mardi Gras

Gross tons: 180,000

Maximum passengers: 6,465

One of Carnival Cruise Line's newest ships, Mardi Gras , debuted in July 2021. Its name honors the line's first ship, the TSS Mardi Gras, which launched in 1972. The original Mardi Gras was around 27,000 gross tons and 650 feet long – in contrast, the new Carnival Mardi Gras weighs more than six times as much and is nearly twice as long. This ship also holds the title as North America's first LNG-powered ship. It has 2,641 staterooms and holds up to 1,745 crew members.

Six themed areas each offer unique dining and entertainment experiences. For New Orleans -inspired cuisine, head to the French Quarter; there, you'll find Emeril's Bistro 1396 and The Brass Magnolia, a bar reminiscent of The Big Easy's jazz culture and Garden District. Don't miss one of the ship's top onboard attractions: the BOLT roller coaster, where riders can hit speeds of nearly 40 mph at 187 feet above sea level.

Read: The Top Themed Cruises

MSC Meraviglia

Courtesy of Port Miami for MSC Cruises

Length: 1,036 feet

Gross tons: 171,598

Maximum passengers: 5,655

MSC Cruises' Meraviglia first set sail in 2017 with an impressive 2,244 staterooms and the capacity to carry 1,536 crew members. A dozen restaurants offer a wide variety of cuisines, including a Spanish tapas bar with dishes created by a Michelin-starred chef, Japanese teppanyaki, Italian fare, fresh seafood, steaks and more. There are also 20 bars, lounges and cafes serving everything from Champagne and cocktails to ice cream and crepes.

The central highlight of the ship is Galleria Meraviglia, a 315-foot promenade with eateries, boutiques and evening parties. Nightly entertainment includes live performances and shows in the Broadway Theatre and the Carousel Lounge. Kids will find plenty to do, as well: There's an Aquapark, an F1 simulator, a flight simulator, LEGO play areas, bowling and more. When it's time to wind down, book a signature treatment at the MSC Aurea Spa.

Norwegian Encore

Length: 1,094 feet

Width: 136 feet

Gross tons: 169,116

Maximum passengers: 3,998 (double occupancy)

Norwegian Encore was built in 2019 as one of Norwegian Cruise Line 's Breakaway Plus-class ships. The vessel has 2,040 staterooms and carries 1,735 crew members. There are several complimentary culinary venues on board, including three main dining rooms, The Local Bar & Grill, the Garden Café buffet, and grab-and-go options. Specialty dining restaurants offer a variety of cuisines, from seafood to steak to Japanese teppanyaki.

When it's time for cocktail hour, 14 bars and lounges serve up everything from cold brews to fine wine and whiskey. For a pre-dinner option, head up to the Observation Lounge for panoramic ocean views. Norwegian Encore is also home to several entertainment venues featuring award-winning live shows and performances.

You'll find the most fun on the ship's top decks. First, head to the Encore Speedway race track, which takes thrill-seekers on a heart-pumping ride through high-speed curves extending 13 feet off the side of the ship. Also at the top of the vessel you'll find The Haven: Norwegian's exclusive "ship within a ship" concept boasts luxurious suites, villas and penthouses with balconies. These luxe accommodations include perks like 24-hour butler service, a concierge and a private sun deck.

Find a Norwegian Cruise Line cruise on GoToSea.

Frequently Asked Questions

The largest cruise ship currently in service is Royal Caribbean's Wonder of the Seas, at more than 235,000 gross tons. Icon of the Seas will become the largest cruise ship in the world at 250,000-plus gross tons after its launch, set for January 2024.

Carnival Jubilee, scheduled to debut in December 2023, and Carnival Celebration are the line's largest ships at 183,521 gross tons.

The line's largest ship is Disney Wish at about 144,000 gross tons. The vessel is 1,119 feet in length and 128 feet wide; it has 1,254 staterooms and carries up to 4,000 passengers and 1,555 crew.

Why Trust U.S. News Travel

Gwen Pratesi has been an avid cruiser since her early 20s. She has sailed on nearly every type of cruise ship built, including the newest megaships, paddle-wheelers on the Mississippi River, and an 18-stateroom river ship on the Mekong River in Vietnam and Cambodia. She has also cruised on a traditional masted sailing ship and on a small luxury expedition vessel in Antarctica crossing the notorious Drake Passage twice. She covers the travel and culinary industries for major publications including U.S. News & World Report.

You might also be interested in:

• The Top World Cruises
• The Top Cruises on Small Ships
• The Top Gay Cruises
• Cruise Packing List Essentials
• The Top Cruise Insurance

Tags: Travel , Cruises

World's Best Places To Visit

• # 1 South Island, New Zealand
• # 4 Bora Bora

If you make a purchase from our site, we may earn a commission. This does not affect the quality or independence of our editorial content.

You May Also Like

Flight canceled or delayed what to do.

Amanda Norcross April 26, 2024

The Best Beach Hats

Megan Johnson and Sharael Kolberg April 26, 2024

The Best Florence Tours

John Rodwan April 25, 2024

The 9 Best Louisiana Swamp Tours of 2024

John Rodwan April 24, 2024

How Much Does a Cruise Cost?

Gwen Pratesi April 24, 2024

The Best Whale Watching in Cape Cod

Lyn Mettler April 24, 2024

Best Whale Watching Tours in Maine

Marisa Méndez April 23, 2024

The Best Wineries in Napa Valley

April 23, 2024

The Best East Coast Beaches

April 19, 2024

The Best Luggage Brands

Rachael Hood April 17, 2024

The World’s Largest Cruise Ship Is Nearly 1,200 Feet Long

Scheduled to debut in January, the vessel can accommodate 5,600 guests and 2,350 crew members

Daily Correspondent

The world’s largest cruise ship is almost ready to set sail.

Royal Caribbean’s massive new ship, Icon of the Seas , passed its inaugural round of sea trials with flying colors, bringing it one step closer to hitting the open ocean with passengers, the cruise line  announced late last month. If all goes as planned, the record-breaking vessel will begin sailing in the Caribbean in January 2024.

Just how big is Icon of the Seas ? Really big. As Jalopnik ’s Ryan Erik King writes, it’s the size of five Titantics. More specifically, Icon of the Seas measures 1,198 feet long—nearly a quarter of a mile—and has a gross tonnage of 250,800. All that space means it can accommodate 5,600 guests and 2,350 crew members.

The cruise line is positioning the vessel as “the ultimate family vacation,” as CEO Michael Bayley told reporters earlier this year, per  CNN ’s Maureen O’Hare.

“When you step back and look at all the energy and time that has gone into creating this ship, it is mind-blowing,” he added.

The previous world’s largest cruise ship was also a Royal Caribbean vessel, Wonder of the Seas , which spanned 1,188 feet long and featured 18 decks.

Crews in Turku, Finland, began work on Icon of the Seas in 2021. Last month, the vessel sailed the open ocean for the first time, as staffers spent four days testing the main engines, hull, brakes, steering system and other components. They also measured noise and vibration levels. 

The vessel will undergo another round of sea trials later this year before officially launching in Miami early next year, according to Royal Caribbean. Icon of the Seas will primarily take cruisers to the islands of the eastern and western Caribbean on seven-night itineraries.

With progress on Icon of the Seas moving along, Royal Caribbean has already started building another large “icon class” ship. The cruise line expects that unnamed vessel to launch in 2025, per a  statement .

Icon of the Seas has 20 total decks, 7 swimming pools and 8 “neighborhoods,” or distinct areas with entertainment and dining. Another noteworthy feature is Category 6, which will be the largest waterpark at sea when Icon of the Seas sets sail.

The ship will be equipped with a special grooming robot that will clean the hull whenever it’s in port to help reduce drag and improve fuel efficiency by 3 to 4 percent, reports  TTG Media ’s Charlotte Cullinan.

Icon of the Seas will also be the first ship in the cruise line’s fleet to run on liquefied natural gas and  fuel cells , which are similar to batteries but do not need to be recharged. Water is the main byproduct of fuel cells—which combine oxygen and hydrogen to produce energy—which should help the ship reduce its greenhouse gas emissions.

Liquefied natural gas , meanwhile, is a controversial energy source that involves cooling natural gas to a liquid state to make it easier to transport. The liquid version is “actually worse than ordinary gas,” writes the  Natural Resources Defense Council . “The energy required to chill, ship and regasify the fossil fuel makes it far more carbon-intensive and increases the potential for leakage of dangerous methane,” according to the organization.

Royal Caribbean’s leaders say they view liquified natural gas as a “ transitional fue l,” and that they hope to continue to  reduce the environmental impact of their ships moving forward. 

"[Liquefied natural gas] is about 20-30 percent better for the environment [than heavy fuel oil], but it’s still not going to be the solution,” Bayley tells TTG Media . “We don’t know the answer, but the whole industry is working towards the answer.”

Get the latest stories in your inbox every weekday.

Sarah Kuta | READ MORE

Sarah Kuta is a writer and editor based in Longmont, Colorado. She covers history, science, travel, food and beverage, sustainability, economics and other topics.

• Port Overview
• Transportation to the Port
• Uber & Lyft to the Port
• Dropping Off at the Port
• Cruise Parking
• Cruise Hotels
• Hotels with Parking Deals
• Uber & Lyft to the Ports
• Things to Do
• Cozumel Taxi Rates
• Free Things to Do
• Restaurants Near the Cruise Port
• Hotels & Resorts With Day Passes
• Closest Beaches to the Cruise Port
• Tips For Visiting
• Shore Excursions
• Cruise Parking Discounts
• Hotels with Shuttles
• Which Airport Should I Use?
• Transportation to the Ports
• Dropping Off at the Ports
• Fort Lauderdale Airport to Miami
• Inexpensive Hotels
• Hotels near the Port
• Hotels With Shuttles
• Budget Hotels
• Carnival Tips
• Drink Packages
• Specialty Restaurants
• Faster to the Fun
• More Articles
• CocoCay Tips
• Norwegian Tips
• Great Stirrup Cay
• Harvest Caye
• How to Get the Best Cruise Deal
• Best Time to Book a Cruise
• Best Websites to Book a Cruise
• Cruises Under $300
• Cruises Under $500
• Spring Break Cruise Deals
• Summer Cruise Deals
• Alaskan Cruise Deals
• 107 Cruise Secrets & Tips
• Tips for First-Time Cruisers
• What to Pack for a Cruise
• What to Pack (Alaska)
• Packing Checklist
• Cruising with Kids
• Passports & Birth Certificates
• Bringing Alcohol
• Cruising with a Disability
• Duty-Free Shopping
• Cruise Travel Insurance
• Things to Do on a Cruise Ship
• What Not to Do on a Ship
• News & Articles

Full List: The 10 Current Largest Cruise Ships on the Planet

If you think cruise ships have gotten bigger, it’s not just your imagination. Whereas a ship built in the 1990s might hold 2,500 passengers and come in at around 75,000 gross tons (a measure of ship size), that’s nowhere near the ships built today.

Today, any new ship from a major line will be at least 140,000 gross tons, with many much larger than that. Passenger counts have also swelled, with many new ships carrying 5,000 cruisers when completely full.

But the largest cruise ships on the planet are in another league altogether. They can measure up to 250,000 gross tons (roughly triple the size of a ship built 30 years ago!) and when at full capacity with crew, have nearly 10,000 people onboard.

Why Are Cruise Ships So Big?

Truth be told, while the size of massive modern ships is staggering, not everyone likes the large ship experience. Some people can find them too crowded and too hard to navigate. But not everyone feels that way, and cruise lines have invested literally billions into building ships that are as large as possible. So what is the appeal of a mega ship?

Amenities/Activities: For passengers, the big advantage of size comes with everything that can be fit onto the ship. Instead of the old days where there was a pool, some loungers, and a buffet, modern mega ships are literal resorts at sea.

There are multiple pools, more than a dozen restaurants, casinos, ziplines, literal parks, ice-skating rinks, rock-climbing walls, spas, and more bars than you can count on your fingers and toes.

All of that combines into an experience that can exceed expectations and keep passengers coming back for more.

Efficiencies of Scale: For cruise lines, one big positive about a larger ship are greater efficiencies. Instead of having the cost of building two smaller ships — and the costs of having two sets of crew to run them both — one larger ship offers the chance for just as many passengers at a lower cost.

Marketing: Finally, one overlooked aspect of why cruise ships are bigger than ever has to do with marketing and publicity. There’s a certain awe and interest that comes with the world’s largest ships. Seeing them in port is essentially a giant billboard for a cruise line. And the largest ships also get significant press due to their size. All of that can translate into more interest, ticket sales, and prices for the newest — and biggest — ships.

With that in mind, here is the current list of the world’s largest cruise ships as of now…

Icon of the Seas

When it comes to the largest ships, Royal Caribbean is the undisputed leader with the six biggest cruise ships in the world. But the king of the fleet — and the largest cruise ship in the world — is Icon of the Seas .

Icon of the Seas doesn’t sail with passengers until 2024, but it’s already made waves. It’s not just the massive size (250,800 gross tons and 7,600 passengers at maximum capacity), but what’s onboard. A full-fledged waterpark, seven different pools, and eight different neighborhoods offer a spot for everyone. This ship looks to change cruising forever.

• Gross Tonnage: 250,800
• Length: 1,198 feet
• Passenger Capacity: 5,610 double occupancy; 7,600 max capacity
• Year Built: 2023

Wonder of the Seas

Wonder of the Seas is the latest edition of Royal Caribbean’s Oasis-class ships (until Utopia of the Seas arrives in 2024), which were the largest class in the world until the new Icon class took the torch. Still, it’s not as if Wonder of the Seas is a slouch.

At 235,600 gross tons, there’s room for 7,084 passengers and an amazing amount to see and do onboard. This includes Central Park, the mid-ship outdoor promenade that winds through lush gardens, and the AquaTheater, where performers put on aquatic shows, including towering high dives at sea.

• Gross Tonnage: 235,600
• Length: 1,188 feet
• Passenger Capacity: 5,734 double occupancy; 7,084 max capacity
• Year Built: 2022

Symphony of the Seas

Each iteration of Oasis-class ships has arrived just slightly larger than the previous when it comes to gross tonnage. That means they each had their time as the largest in the world before another arrived on the scene. In this case, Symphony of the Seas (228,000 gross tons and the ability to hold 6,680 passengers) took the crown in 2018.

Today, it’s the third-largest cruise ship on the planet, but it’s no slouch. It holds seven different neighborhoods, nearly 3,000 staterooms, three waterslides, and Ultimate Abyss — a 10-story dry slide.

• Gross Tonnage: 228,081
• Passenger Capacity: 5,518 double occupancy; 6,680 max capacity
• Year Built: 2018

Harmony of the Seas

Built in 2016, Harmony of the Seas features 18 decks, more than 225,000 gross tons (about 10% smaller than Icon of the Seas) and can carry nearly 6,700 passengers when completely full. That’s good enough to make it the fourth-largest cruise ship in the world.

It features many of the same components of other ships in the class, like the adults-only Solarium, Central Park, and the AquaTheater. That’s not to mention 17 different spots to grab a bite to eat.

• Gross Tonnage: 226,963
• Passenger Capacity: 5,479 double occupancy; 6,687 max capacity
• Year Built: 2016

Oasis of the Seas

The ship that started the trend of truly mega ships is also the namesake of the Oasis class — Oasis of the Seas. If you notice, most of the largest ships on our list were built recently. This ship first began sailing in 2009 and set off the “arms race” of larger ships that continues today.

Following a refurbishment, it now features three waterslides, a dozen lounges, 2,801 cabins (including one with a panoramic view right above the ship’s bridge), a splash pad for kids, and even an escape room themed like the 1960s NASA mission control. And did we mention 20 different places to find something to eat?

• Gross Tonnage: 226,838
• Length: 1,187 feet
• Passenger Capacity: 5,602 double occupancy; 6,771 max capacity
• Year Built: 2009

Allure of the Seas

Following a refurbishment of Oasis of the Seas, Allure of the Seas — which was the second ship in the class and built in 2010 — is actually now the smallest of the group based on tonnage. Still, that’s good enough for sixth largest in the world at “just” 225,000 gross tons.

On the ship, you’ll find 18 decks, 2,748 staterooms and more than 6,800 passengers when completely full. That’s definitely a lot of people, but remember that you also have a lot more space to spread out, giving plenty of elbow room.

• Gross Tonnage: 225,282
• Passenger Capacity: 5,496 double occupancy; 6,826 max capacity
• Year Built: 2010

MSC World Europa

While Royal Caribbean has a lock on the largest ships, the title of largest cruise ship from outside that cruise line goes to MSC World Europa.

Coming in at almost 216,000 gross tons, it’s roughly 14% smaller than Icon of the Seas. But don’t think it’s some slouch. From bumper cars to seven pools to an 11-story slide, there’s no shortage of things for kids to do. Adults will love the 13 different dining options and an indoor promenade or Panorama Lounge for shopping, having a drink, or just relaxing.

This ship will be joined in 2025 by sister-ship MSC World America, set to sail stateside.

• Gross Tonnage: 215,863
• Length: 1,094 feet
• Passenger Capacity: 5,231 double occupancy; 6,762 max capacity

Costa Smeralda/Costa Toscana (Tie)

These two ships come in at a tie for the eighth-largest cruise ship in the world. Built in 2019 and 2021, respectively, they both belong to Costa Cruises. And if the shape of the ship looks familiar, that’s because Costa is a sister line to Carnival. A similar design is used for Carnival’s largest ships, Mardi Gras, Celebration, and Jubilee. However, those ships come in just under the 185,000 gross tons seen with Smeralda and Toscana.

Both ships offer 13 pools and hot tubs, nearly a dozen restaurants and just under 20 bars and lounges. And if you like balcony views? There are 1,550 balcony rooms on each, providing plenty of options for the roughly 6,500 passengers that can sail at full capacity.

• Gross Tonnage: 185,010
• Length: 1,106 feet
• Passenger Capacity: 5,224 double occupancy; 6,554 max capacity
• Year Built: 2019/2021

P&O Arvia

Taking the crown as the 10th-largest cruise ship in the world is Arvia from P&O Cruises. Measuring just under 185,000 gross tons, it offer a similar design to ships like Costa Smeralda and Carnival Celebration, but don’t think these ships are all the same.

For instance, Arvia features a unique Skydome area that is a pool area with retractable roof by day and an entertainment venue by night. It also features its own rum distillery onboard, meaning you can take home rum literally made on the ship. Kids will love the Altitude zone that features a ropes course, mini-golf, and more. There’s also Mission Control, a submarine-themed escape room.

All told, a reported 6,685 passengers can enjoy the ship at one time.

• Gross Tonnage: 184,700
• Length: 1,130 feet
• Passenger Capacity: 5,200 double occupancy; 6,685 max capacity

More on Large Ships:

• The World’s Largest Cruise Ship Compared to Famous Places
• The World’s Largest Cruise Ships Sailing For Each Line (With Photos)
• Photos: See the New Icon of the Seas Sail for the First Time

Popular: 39 Useful Things to Pack (17 You Wouldn't Think Of)

Read next: park & cruise hotels for every port in america, popular: 107 best cruise tips, secrets, tricks, and freebies, related articles more from author, cruising with a baby: what to know from someone who’s done it, 12 cruise tips that feel wrong (but are 100% right), how much cruise lines spend on food (less than you think), 11 tips cruise lines don’t want you to know (but they aren’t against the rules), 61 questions about cruising answered (everything you wanted to know), 107 best cruise tips, tricks, secrets, and freebies, leave a reply cancel reply.

Save my name, email, and website in this browser for the next time I comment.

Nearly 100 Passengers Fall Ill With Stomach Virus on Princess Cruise

Cruise news: carnival’s new ship, royal’s new beach club, ncl’s big milestone & more, hotels with cruise shuttles for every major port in america, 39 useful things to pack for your cruise (including 17 you’d never think of).

• Privacy Policy
• Terms & Conditions

The top 10 biggest cruise ships in the world

M odern cruise ships continue to grow in size, with the biggest cruise ship, the Icon of the Seas , launching at the start of this year, and her sister ship the Star of the Seas expected to surpass her in size.

Both of these ships are operated by Royal Caribbean International, which operates five of the ten largest cruise ships in the world. Carnival Corporation, arguably the biggest cruise company in the world, features three times on the list through its subsidiaries P&O Cruises and Costa Cruises.

All of the heaviest cruise ships in the world were built within the last 20 years, although the majority – six of the ten – were built within the last five years.

So, here are the top ten biggest cruise ships in the world, by gross tonnage. 

10. P&O Cruises MS Arvia : 185,581 gross tonnes

The MS Arvia is P&O Cruises’ fourth ship to be built by German shipyard Meyer Werft. Weighing in at 185,581 gross tonnes, the 345m (1,130-foot) Arvia is slightly larger than her sister ship, the MS Iona . The 20-deck ship is the largest ship commissioned for the British cruise market and has a maximum passenger capacity of 6,264 passengers, with 1,800 crew onboard. 

The ship is the second liquefied natural gas (LNG)-powered Excellence-class vessel for P&O, following the Iona . Arvia is powered by a 61,760kW LNG drive system, with a propulsion power of 37 megawatts. The LNG-powered propulsion system allows the vessel to sail at a maximum speed of 21.5 knots.

After being floated out in August 2022, the Arvia mainly operates itineraries around the Caribbean or the Mediterranean.

9. Costa Cruises – Costa Smeralda : 185,010 gross tonnes

The Costa Smeralda is the first LNG-powered vessel in the Costa Cruises fleet. With a gross tonnage of 185,010gt, the 20-deck Excellence-class ship measures 337m (1,106 feet) in length. The second LNG-powered cruise ship to enter operation in the world, she has a maximum capacity of 6,554 passengers with 1,646 crew and a service speed of 21.5 knots.

Construction of the Costa Smeralda began at the Meyer shipyard in Turku, Finland, in September 2017. Meyer Turku collaborated with the Meyer Werft Papenburg shipyard to develop and integrate the LNG propulsion plant for the ship. She is fitted with four 16-cylinder, Caterpillar MaK 16VM46DF engines, with 15.4 megawatts (20,710 horsepower) output per engine, resulting in a maximum power of  37 megawatts (50,000 horsepower).

The ship, which was named after the Emerald Coast of Sardinia, entered service in December 2019 , departing Savona on its maiden voyage in the Mediterranean, where it has sailed since.

8. Costa Cruises – Costa Toscana : 186,364 gross tonnes

The Costa Toscana is the sister ship of the Costa Smeralda and is also powered by LNG . measuring 337m (1,106 feet) long and weighing in at 186,364 gross tonnes, the Toscana has a maximum capacity of 6,338 passengers and 1,678 staff across her 20 decks.

Like her sister ship, the Toscana was also built at the Meyer shipyard in Finland, with construction completed in 2021. She is also powered by four MaK-Caterpillar engines, with a total power of 57.2 megawatts (76,706 horsepower), and two ABB Azipod motors , resulting in a service speed of 17 knots.

Named in homage to the Tuscany region of Italy, Costa Toscana mainly sails around the Mediterranean Sea but Costa Cruises has also used the ship to sail itineraries further afield, such as around Brazil and the UAE.

7. MSC Cruises – MSC World Europa : 215,863 gross tonnes

The only entry in the top ten from MSC Cruises, MSC World Europa measures 333m (1,094 feet) in length. With 215,863 gross tonnage, she can house more people than any other ship in the MSC fleet: up to 6,762 passengers across 2,633 cabins spread over 22 decks, in addition to 2,138 crew.

Built by Chantiers de l’Atlantique in Saint-Nazaire, France, the World Europa ’s LNG-power propulsion system was subcontracted to Finland-based Wärtsilä. Five LNG-powered, 14-cylinder Wartsila 46DF dual-fuel engines power the vessel, with a propulsion power of 44 megawatts ( 59,005 horsepower). She also features nitrogen oxide reduction (NOR) units, two Wartsila LNGPac fuel storage and supply systems, seven thrusters, and two fixed-pitch propellers. 

The MSC World Europa was floated out at the end of 2021 and was initially used as an accommodation vessel for fans attending the 2022 FIFA World Cup, with the ship berthed at Doha Port in Qatar during the tournament. Following the competition, the ship subsequently travelled several routes around the UAE, before sailing to the Mediterranean, where it has sailed itineraries since.

6. Royal Caribbean International – Allure of the Seas : 225,282 gross tonnes

The first of many entries on this list operated by Royal Caribbean, Allure of the Seas weighs in at 225,282 gross tonnes. Measuring 362m (1,187 feet), she is only 50mm (2 inches) longer than her sister ship the Oasis of the Seas . The Allure has a maximum capacity of 6,780 passengers and 2,200 crew across 18 decks.

Built at the Turku Shipyard in Finland, the Allure took two years to build , floating out in 2010. She features six Wärtsilä 46 diesel engines with a total power output of 97 megawatts (130,053 horsepower). It is propelled by three electric Azipod azimuth thrusters. The ship can travel at a cruising speed of 22 knots.

With a homeport of Galveston, Texas in the US, the Allure mainly serves itineraries around the Bahamas but she is scheduled to sail routes around the Mediterranean in 2025.

5. Royal Caribbean International – Oasis of the Seas : 226,838 gross tonnes

The oldest ship on this list, the Oasis of the Seas has been in service for over a decade. She was the biggest cruise ship at the time when floated out in 2009, with a gross tonnage of 226,838gt and a length of 360m (1,181 feet). The Oasis has a maximum capacity of 6,699 passengers and 2,181 staff across 18 decks.

The Oasis took two years to build at the Meyer shipyard in Turku, Finland, with the keel laid on 12 November 2007 and the ship arriving at her homeport of Port Everglades in Florida, US, on 13 November 2009.

The Oasis is powered by eight Wärtsilä V12 diesel engines, which generate 5.6 megawatts (7,500 horsepower) each, alongside four bow thrusters. The main propulsion system consists of three 20-megawatt (26,820 horsepower) electric Azipod motors, resulting in a combined propulsion power of 82 megawatts (109,964 horsepower) and a standard cruising speed of 23 knots.

The Oasis mainly operates routes around the Caribbean, but occasionally repositions to offer itineraries in the Mediterranean.

4. Royal Caribbean International – Harmony of the Seas : 226,963 gross tonnes

The third Oasis-class ship built by Royal Caribbean, Harmony of the Seas weighed in bigger than her existing sister ships at launch in 2016, with 226,963 gross tonnage, but she has since been surpassed by newer vessels. With a total length of 362m (1,188 feet), Harmony has a maximum capacity of 6,780 passengers and 2,300 staff across 18 decks.

Royal Caribbean placed an order with STX France for the construction of Harmony of the Seas in December 2012. The first steel for the ship was cut at STX France’s Saint-Nazaire shipyard in September 2013, while the keel-laying ceremony was held in May 2014.

The Harmony is powered by three 18.9-megawatt Wärtsilä 16V46 16-cylinder main generator diesel engines and three Wärtsilä 12V46 12-cylinder engines producing 13.9 megawatts each. The propulsion power is provided by three electric Azipod azimuth thrusters and manoeuvring is assisted by four 5.5-megawatt Wärtsilä CT 3500 tunnel thrusters. The propulsion system results in 82 megawatts (109,964 horsepower) and enables the ship to sail at a standard speed of 23 knots.

Harmony of the Seas embarked on her inaugural seven-night Western Mediterranean cruise from Barcelona, Spain, in June 2016, and currently operates itineraries around the Western Caribbean from her homeport of Galveston, Texas in the US.

3. Royal Caribbean International – Symphony of the Seas : 228,081 gross tonnes

At launch in 2018, the Symphony of the Seas surpassed the Harmony as the biggest cruise ship, weighing in at 228,081 gross tonnes. Measuring 361m (1,185 feet), the Symphony has a maximum capacity of 6,680 passengers and 2,200 staff across 18 decks and was the testing ground for Royal Caribbean's new muster drill . With a total length of 361m (1,185 feet), She is roughly 30 metres (98 feet) longer than the largest military ships , the US Nimitz-class aircraft carriers and the USS Gerald R. Ford .

The keel-laying ceremony for the Symphony of the Seas was held in October 2015 at STX’s Saint-Nazaire shipyard in France, and the ship sailed out in June 2017. She is powered by six diesel sets, each composed of three Wärtsilä 16V46D engines and three Wärtsilä 12V46D engines, as well as three 20-megawatt electric Azipod main engines – resulting in 82 megawatts (109,964 horsepower) of propulsion power and a standard cruising speed of 22 knots.

The Symphony commenced her seven-day maiden voyage from Barcelona in April 2018, and since then has mainly operated itineraries around the Caribbean from her homeports of Miami, New York, and Fort Lauderdale.

2. Royal Caribbean International – Wonder of the Seas : 235,600 gross tonnes

Royal Caribbean's flagship, Wonder of the Seas is the fifth Oasis-class cruise ship built for the cruise company. Weighing in at 235,600 gross tonnes, the Wonder was the largest ship in the world when she was completed in January 2022. Measuring 362m (1,187 feet) in length, the 18-deck Wonder has a maximum capacity of 7,084 guests across its 2,867 staterooms, as well as housing 2,369 crew.

Built by Chantiers de l’Atlantique in Saint-Nazaire, Wonder is powered by two Wärtsilä 16V46D engines and four Wärtsilä 12V46D engines; and uses three 20-megawatt electric Azipod engines for propulsion, combining for a propulsion power of 82 megawatts (109,964 horsepower and a standard cruising speed of 22 knots.

The Wonder sailed her maiden voyage in March 2022 from Fort Lauderdale, Florida, and has since served itineraries around the Caribbean from her homeports of Miami and Cape Canaveral.

1. Royal Caribbean International – Icon of the Seas : 248,663 gross tonnes

Weighing 248,663 gross tonnes and measuring 365 metres (1,1967 feet), the Icon of the Seas is the largest cruise ship in the world. Christened on 23 January 2024, the Icon has a maximum capacity of 7,600 passengers and 2,350 crew across 20 decks. She is the lead ship of the new Icon-class, with a sister ship the Star of the Seas due to be delivered in 2025 and another ship planned for delivery in 2026.

Built by Meyer Turku in Finland, the Icon is the first ship in the Royal Caribbean fleet that can be powered by LNG. It uses three Wärtsilä 14V46DF and three Wärtsilä 12V46DF for its main generator engines, which provide 67.5 megawatts of energy to run the ship. She is propelled by three 20-megawatt Azipod thrusters as well as five 4.8-megawatt Wärtsilä WTT-45 CP bow thrusters, with a cruising speed of 22 knots.

After sailing her maiden voyage on 27 January 2024, the Icon now sails year-round itineraries of seven-night trips around the Eastern and Western Caribbean from her homeport of Miami, Florida.

"The top 10 biggest cruise ships in the world" was originally created and published by Ship Technology , a GlobalData owned brand.

The information on this site has been included in good faith for general informational purposes only. It is not intended to amount to advice on which you should rely, and we give no representation, warranty or guarantee, whether express or implied as to its accuracy or completeness. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site.

3 of the world's biggest cruise ships soon will battle for supremacy out of Miami

Get ready for the Battle of the Cruise Ship Giants out of Miami.

Fast-growing MSC Cruises on Thursday officially announced its North America schedule for the summer of 2025, including a Miami deployment that will set the stage for an epic matchup between three of the world's biggest cruise vessels.

As part of the announcement, MSC Cruises confirmed that its soon-to-debut MSC World America would sail from Miami from April 2025 through at least October 2025. This will place it in a head-to-head matchup with Royal Caribbean 's just-unveiled Icon of the Seas and Carnival Cruise Line 's one-year-old Carnival Celebration .

For more cruise news, guides and tips, sign up for TPG's cruise newsletter .

All three of the vessels will be the biggest in their respective fleets.

Scheduled to begin sailing in April 2025, MSC World America will be the world's seventh-biggest cruise ship when it debuts and the biggest MSC Cruises ship ever deployed to North America. Unveiled in January, Icon of the Seas is the world's biggest cruise ship .

Dating to November 2022, Carnival Celebration is the world's 14th biggest cruise ship.

For the summer of 2025, both MSC World America and Icon of the Seas will sail from Miami on Saturdays on seven-night trips to the Caribbean. Carnival Celebration will sail out of Miami on Sundays on six- to eight-night trips to the Caribbean .

As confirmed on Thursday, MSC World America will operate alternating itineraries to the Eastern Caribbean and Western Caribbean.

• Eastern Caribbean voyages will bring stops at Puerto Plata, Dominican Republic; San Juan, Puerto Rico; and Ocean Cay, MSC Cruises' private island in the Bahamas.
• Western Caribbean sailings will stop at Costa Maya and Cozumel in Mexico; Roatan, Honduras; and Ocean Cay.

Icon of the Seas will rotate among four different itineraries across the Eastern and Western Caribbean that bring visits to such destinations as St. Thomas; St. Maarten (the Dutch side of the island of St. Martin); Roatan; and Costa Maya and Cozumel, Mexico.

Related: Yikes, does Icon of the Seas really cost that much?

Carnival Celebration will mostly sail to Eastern Caribbean destinations such as St. Thomas, San Juan and Amber Cove in the Dominican Republic. It'll also operate some Southern Caribbean cruises.

The matchup between MSC World America and Icon of the Seas is particularly notable as it marks the first time vessels measuring more than 200,000 tons from two different cruise brands have competed on sailings out of a North American port.

Giants of the seas

MSC Cruises and Royal Caribbean are currently the only cruise brands in the world with ships measuring more than 200,000 tons. MSC World America is expected to measure around 216,000 tons. Icon of the Seas measures 248,663 tons. Carnival Celebration measures 183,521 tons.

All three vessels are among the most venue-filled in their respective fleets, with dozens of restaurants, bars, showrooms and over-the-top attractions on the decks.

Related: Our first impressions of the giant Icon of the Seas

MSC World America and Icon of the Seas, in particular, have several similarities, including public area venues segmented into "districts," as MSC Cruises calls them. Royal Caribbean calls them "neighborhoods."

Both ships have been designed around a central interior promenade with entertainment, shops and bars.

Among the standout features planned for MSC World America will be an Aquapark with multiple waterslides that integrate virtual reality technology. MSC Cruises also announced last week that the ship would have what's billed as the only overwater swing ride at sea; the attraction is called Cliffhanger, and it's suspended 160 feet above the water.

MSC World America will also have six pools and 14 hot tubs, making it one of the most pool-covered ships at sea.

Related: The 6 types of MSC Cruises ships, explained

As part of its Thursday announcement, MSC Cruises confirmed summer 2025 plans for three other vessels sailing out of North American ports:

• The 4,540-passenger MSC Seascape will operate three-, four- and seven-night itineraries from Miami departing on Thursdays and Sundays. Stops will include Nassau, Bahamas; San Juan; Puerto Plata; Jamaica; Grand Cayman; and Ocean Cay.
• The 4,488-passenger MSC Meraviglia will operate seven-night itineraries from New York City to Florida and the Bahamas and Bermuda, departing on Sundays. Stops on the Bahamas cruises will be Port Canaveral, Florida; Nassau; and Ocean Cay. The Bermuda cruises will bring an extended call at Bermuda's Royal Naval Dockyard.
• The 4,540-passenger MSC Seashore will operate three-, four- and seven-night itineraries from Port Canaveral with a range of port options departing Thursdays and Sundays.

All three of the vessels are among the 25 biggest cruise ships in the world.

Planning a cruise? Start with these stories:

• The 5 most desirable cabin locations on any cruise ship
• A beginners guide to picking a cruise line
• The 8 worst cabin locations on any cruise ship
• The ultimate guide to what to pack for a cruise
• A quick guide to the most popular cruise lines
• 21 tips and tricks that will make your cruise go smoothly
• Top ways cruisers waste money
• The ultimate guide to choosing a cruise ship cabin

The Current with Matt Galloway

Three stories to expand your worldview, delivered daily. Matt Galloway cuts through a sea of choice to bring you stories that transcend the news cycle. Conversations with big thinkers, household names, and people living the news. An antidote to algorithms that cater to what you already know — and a meeting place for diverse perspectives. In its 20 years, the Current has become a go-to place for stories that shape and entertain us. Released daily, Monday to Friday.

More on The Current

Previously aired.

The U.S. has introduced regulations to keep chemicals called PFAS out of drinking water. We look at what Canada is doing to deal with these “forever chemicals,” which are used in all kinds of consumer products but linger in our air, water and soil.

Then, Sikh separatists in Canada and the U.S. allege that the Indian government is attempting to assassinate its critics in other countries — people India considers terrorists. We hear about a Fifth Estate investigation into those allegations.

Plus, the U.S. has approved billions in aid for Ukraine after months of congressional debate. Chris York, a news editor for Kyiv Independent, tells us what that money will mean for the country and a war that shows no sign of ending.

Also, some Olympic winners will receive almost $70,000 on top of their gold medals this summer. But the move has sparked criticism for undermining Olympic values and favouring track and field over other sports. 

And the writer Gary Shteyngart spent seven days on the largest cruise ship in the world, and hated it. He compares being on the Icon of the Seas — a ship twenty decks high with up to 10,000 people on board — to being trapped in a giant mall, adrift in the Caribbean.

• Monday April 22, 2024 Full Transcript

CBC Listen Media Player

Now playing :  , .