Costa Rica’s oldest protected wilderness area covers 12 sq km at the tip of the Península de Nicoya. The unique park is covered by evergreen forests, bisected by a hiking trail and flanked by empty white-sand beaches and offshore islands. Follow the Sendero Sueco (Swedish Trail), which leads 4.5km down to a magnificent, jungle-backed beach at the tip of the peninsula. Or take the shorter trail, Sendero Danés (Danish Trail), a 2km loop through the jungle.
Note that the reserve is closed on Monday and Tuesday.