Corcovado National Park is an 2,940-square-kilometre (726,000-acre) preserved area of Valdivian temperate rainforest, high peaks, alpine lakes, and rivers in Chile's Los Lagos Region.

While most of the park's area was previously federal land, mostly under the jurisdiction of the Chilean Armed Forces, the 1994 purchase of a key 840-square-kilometre (208,000-acre) parcel by the Conservation Land Trust (now the Tompkins Conservation) and U.S. philanthropist Peter Buckley sparked the effort to transform this area into a national park.

Corcovado National Park, Chile’s fourth largest, was formally designated by President Lagos in January 2005, largely due to his determination.

Marine mammals, including seals and sea lions, thrive in the bay, which was discovered to be a crucial nursery area for blue whales, Earth’s largest animals.

The bay, once the lair of pirates, is now proposed to become Chile’s first marine sanctuary, assuring a continuity of protection for wildlife from ocean bottom to mountain peaks.