There is some good birding in the dense forest here, which is also an important wildlife corridor connecting to Corcovado National Park. Follow the main road northwest through the American Zone and past the airstrip and a housing project. The place where a dirt road heads into the rain forest is great for bird-watching. There are no marked trails actually in the park; the best birding is along the road.
Adjacent to Golfito National Wildlife Refuge, Golfito, 60505, Costa Rica