Largest Cruise Ship 2025 Size. Right now, a royal caribbean ship holds the honor. 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 long and 235,600 gross tons.

Scheduled to debut in january, the vessel can accommodate 5,600 guests and 2,350 crew members Cruise from miami and start your vacation in one of the worlds best places to visit, then set sail from the port of miami to the bahamas, mexico, puerto rico and beyond on weekend getaway cruise or a longer caribbean.