World Largest Cruise Ship 2024. Royal caribbean's $2 billion icon of the seas is the world's largest cruise ship with 20 decks, 7 pools, a water park, and over 40 dining spots. The ship is officially the biggest cruise ship in the world, with royal caribbean’s wonder of the seas, new in early 2022, trailing close behind at 1,188 feet.

1,197 feet launching in january 2024, icon of the seas took on the mantle of. The ship is officially the biggest cruise ship in the world, with royal caribbean’s wonder of the seas, new in early 2022, trailing close behind at 1,188 feet.