No. 20 Ambergris Cay, Belize
Belize’s largest island attracts travelers eager to experience some of the world’s top snorkeling and scuba diving in the Belize Barrier Reef. So it’s no wonder that the island got its highest score for natural sights. Even in San Pedro, the only town, bicycles and golf carts account for most of the traffic. And the beach offers a pleasant mix of dive huts, barefoot bars, and cafés on stilts over the water.