Best for Nature Lovers: Harvest Caye in Belize

Most cruise line private islands are located in The Bahamas, but Norwegian Cruise Line also operates one in Belize. Harvest Caye makes for a fun beach day with a gorgeous beach and a large pool, a calm lagoon for water activities like paddleboarding, and a thrilling zipline. But what sets it apart is its access to nature and wildlife. Take a break from sunbathing to meet scarlet macaws, toucans, and boa constrictors at the island's complimentary nature park or stroll through its butterfly garden.

Plus, it's easy to book a shore excursion off the island, where you can snorkel Belize's barrier reef with its abundance of sea life, take a rainforest river cruise to spot howler monkeys and crocodiles, find manatees on a mangrove tour, or explore Mayan archaeological sites hidden in the jungle.