Los Roques Archipelago National Park
These 50 islands poking out of crystal-blue waters 90 miles east of Bonaire are ringed with reefs and softened by vast coral-sand flats and turtle-grass beds swarming with bonefish. Only one of the islands, Gran Roque, is inhabited, and it's there that visitors base themselves in small posadas that line the island's few sand streets. Snorkelers and divers head out with local guides in small boats to explore surrounding islands and their practically virgin reefs, which received protected status in 1972 and continue to be among the healthiest and most biodiverse reefs in the Caribbean. The farther south from Gran Roque, the better the reefs.