With the best-developed conservation program in the world–where 27 percent of the country is protected and 11 percent is included in the country’s national park system–Costa Rica is an adventure traveler’s dream. And with more than 635 miles of coastline along the Pacific, a majority of this traveling is best done sea kayaking. Topping the list of Costa Rican hotspots for sea kayaking is Manuel Antonio National Park, with white sand beaches, an evergreen littoral forest, a dense tropical jungle, rocky islets and crystal clear waters. If you’re there at the right time, you can also see endangered sea turtles come to bury their fragile eggs in the park’s beaches. Outfitters: Rios Tropicales, (800) 231-7422; Costa Rica Expeditions, (011) 506-23-9975.