About.com`s "Caribbean for Visitors" guide, Robert Curley, has listed his picks for "Seven Natural Wonders of the Caribbean," and you can hike, snorkel or dive in several of them. Take a look at Seven Natural Wonders of the Caribbean to learn more about snorkeling in the Baths of Virgin Gorda, Virgin Islands; kayaking in Bioluminescent Bay, Vieques, Puerto Rico; hiking in El Yunque Rainforest in Puerto Rico; or diving in Bonaire`s National Marine Park.