Bordered by the Pacific Ocean and the Caribbean Sea, Costa Rica spans just 170 miles (274 kilometers) coast-to-coast, yet contains six percent of the world's biodiversity. Postcard-perfect beaches; lush, protected rainforests; and a proud history of promoting conservation and eco-tourism have helped make the country a veritable paradise for active travelers and nature lovers—as well as Central America's top travel destination. Many tours begin in Costa Rica's ""Golden Triangle"" and string together the most popular destinations: Arenal Volcano National Park and nearby La Fortuna, Monteverde Cloud Forest Reserve, and Manuel Antonio National Park. In this region alone, there are enough outdoor activities to fill several vacations, ranging from ziplining through the rainforest canopy, to whitewater rafting, to rainforest safaris, and perhaps even a glimpse of the Arenal volcano in action. Many tours offer family-friendly options, and proximity to the Pacific coast makes it easy to include plenty of beach time. Off the beaten path, consider a private tour of Tortuguero National Park, a protected wilderness reserve and seasonal sea-turtle nesting ground that's home to monkeys, crocodiles, and more than 300 species of birds. If you have some time in San Jose, the capital offers a wealth of museums, including the National Museum, the Gold Museum, the Jade Museum, and the Children's Museum. Or tour the lively Central Market to shop for handicrafts. Everywhere you go, Costa Rica casts its spell—don't be surprised if you fall in love with the ""pura vida"" lifestyle and never want to leave.