2025 promises to be an exciting year for cruise lovers eager to explore the world from the sea. These floating cities are equipped with everything you need for a perfect holiday: restaurants, swimming pools, shops, cinemas, and even sports fields.

As the industry continues to grow, so does the size and scale of these magnificent vessels. This year, Royal Caribbean takes the spotlight, securing the top five positions with its colossal ships, each offering unparalleled luxury, entertainment, and innovation.

Let’s take a look at the largest cruise ships in the world for 2025:

10. AIDAnova, AIDA Cruises

AIDAnova, a floating resort, is the first LNG-powered vessel of AIDA Cruises, measuring 337 meters in length and accommodating up to 6,600 passengers. It boasts numerous restaurants, bars, gyms, saunas, libraries, and a brewery.

9. P&O Iona, P&O Cruises

P&O Iona, the UK’s cruise ship, is 345 meters long with a tonnage of 184,089 tons, accommodating up to 5,200 passengers. It features an entertainment space with a glass dome ceiling, an infinity pool, a multiplex cinema, and over 15 restaurants.

8. Costa Smeralda, Costa Cruises

With a length of 337 meters, a width of 42 meters, and a displacement of 182,700 tons, Costa Smeralda can carry more than 6,600 passengers. It offers 13 swimming pools and whirlpools, 11 restaurants, and 19 bars and lounges.

7. MSC World Europa, MSC Cruises

MSC World Europa is 333 meters long with a tonnage of 205,700 tons, accommodating up to 6,762 passengers. It features numerous restaurants, a water park, a theatre, and advanced sustainability technologies.

6. Allure of the Seas, Royal Caribbean International

Allure of the Seas measures 362 meters in length with a gross tonnage of 225,282 tons, accommodating up to 6,780 passengers. It offers the Boardwalk, the Rising Tide Bar, and many new attractions for 2025.

5. Oasis of the Seas, Royal Caribbean International

Oasis of the Seas is 360 meters long with a tonnage of 226,838 tons, accommodating up to 6,780 passengers. It features an open-air amphitheatre, a children’s water park, and numerous themed restaurants.

4. Harmony of the Seas, Royal Caribbean International

Harmony of the Seas, 362 meters long with a tonnage of 226,963 tons, can accommodate up to 6,687 passengers. It offers attractions like The Perfect Storm water slide and The Ultimate Abyss.

3. Symphony of the Seas, Royal Caribbean International

Symphony of the Seas measures 361 meters in length with a gross tonnage of 228,081 tons, accommodating up to 6,680 passengers. It features the Bionic Bar, an open-air theatre, and a surf simulator.

2. Wonder of the Seas, Royal Caribbean International

Wonder of the Seas is 362 meters long with a tonnage of 236,857 tons, accommodating up to 6,988 passengers. It offers the Ultimate Abyss slide, numerous restaurants, and unique experiences like the “Perfect Day at Coco Cay.”

1. Icon of the Seas, Royal Caribbean International

Icon of the Seas, measuring 365 meters long with a gross tonnage of 250,800 tons, is the largest cruise ship in the world. It can accommodate up to 7,600 passengers and offers six record-breaking slides, the FlowRider surf simulator, and the first infinity pool suspended over the sea.

These impressive floating cities offer an unparalleled cruising experience, each with its own unique attractions and amenities. Whether you’re seeking adventure, relaxation, or entertainment, there’s a cruise ship in this list that promises to make your 2025 holiday unforgettable. Ready to set sail and explore the seas in style? Let’s find the perfect cruise for you!