Corcovado National Park is a National Park on the Osa Peninsula in Osa Canton, southwestern Costa Rica, which is part of the Osa Conservation Area. It is the largest park in Costa Rica and protects about a third of the Osa Peninsula. 

It is widely considered the crown jewel in the extensive system of national parks and biological reserves spread across the country. The ecological variety is quite stunning. 

National Geographic has called it "the most biologically intense place on Earth in terms of biodiversity". Not only is the park very popular with tropical ecologists, a visitor can expect to see an abundance of wildlife.

- Wikipedia