Swimming in Corcovado National Park Found: 2 | Change Filter Options Corcovado Beach Trek and La Leona Ecolodge Explore the stunning landscape and exotic wildlife of Costa Rica's Osa Peninsula with the Corcovado Beach Trek and La Leona Ecolodge! Epic Osa Peninsula Rainforest Adventure Explore the Osa Peninsula in Costa Rica and immerse yourself in the culture and beauty of the rainforest. Swim in crystal clear swimming holes, observe wildlife in Corcovado National Park, and relax on beautiful beaches.