In January 2024, the world's largest cruise ship set sail from Miami on its maiden voyage, a seven-day island-hopping tour of the Caribbean. Icon of the Seas is 1,197 feet (365m) long, boasts 20 decks and can host up to 7,600 passengers. With seven swimming pools, six water slides and more than 40 restaurants, lounges and bars, it's little wonder that the supersized ship cost £1.6 billion ($2bn).

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