Cocos Island National Park Costa Rica

20 Best Scuba Diving Destinations in the World

"Located roughly 340 miles off Costa Rica, this biodiverse national park is a magnet for marine biologists and shark-focused divers: “It’s widely considered one of the top shark-diving destinations in the world,” said Jay Clue, with schools of hammerheads a major draw. A liveaboard is the best way to visit this remote site, which also sits at the northern end of the Galapagos–Cocos Swimway, an underwater highway for migrating animals like sharks and turtles." - Stephanie Vermillion Stephanie Vermillion Stephanie Vermillion is a travel journalist and photographer covering culture and adventure for Travel + Leisure Outside, and more. Travel + Leisure Editorial Guidelines