We go behind the scenes aboard the world’s most luxurious cruise ships to uncover how opulence and adventure meet on the high seas. Aboard the Seven Seas Grandeur, we unveil a floating art gallery boasting a multi-million-pound collection to rival the world’s great museums. Butler Immanuel gives us a guided tour of suites that cost up to £8,000 a night, where guests dine on complimentary caviar and champagne.