The Osa Peninsula in Costa Rica is one of the most biologically intense places on the planet. In the region there are between twenty-five and thirty different ecosystems; It is also home to an amazing variety of plant and animal species, many endangered. It has one of the most important populations of large threatened mammals in Central America, among which are predators such as jaguars and pumas.

The region is also home to many endemic species of birds and trees. From the harpy eagle, which was believed extinct since 1989, specimens have been discovered in the Corcovado National Park; and for humpback whales there are, in this place, important areas of childbirth in the waters that surround Isla del Caño and the Golfo Dulce.