The Sun Princess is Princess Cruises' largest and newest ship, marking the debut of its Sphere class of ships. Launched in 2024, it accommodates 4,300 guests and 1,600 crew members, featuring 21 decks and a modern, lighter design with a large, multi-deck glass sphere at its center. Key features include a massive array of dining and entertainment venues, innovative designs for crowd management, and the use of liquefied natural gas (LNG) for more environmentally friendly operations.