Princess is one of the fifteen most luxurious cruise ships in the world, and its full name is Princess Diamond. In the 1980s, Princess Cruises took the lead in launching affordable private balconies. Previously, only expensive cruise suites were equipped with luxurious balcony facilities. In the mid-1990s, Princess Cruises first put forward the concept of allowing guests to choose their own cruise experience, and launched various convenient and flexible facilities, entertainment activities and catering services on board to create personalized sea holidays.