Waychinicup National Park is in Western Australia, 404 kilometres (251 mi) southeast of Perth and 65 kilometres (40 mi) east of Albany, along the coast of the Southern Ocean.

Gilbert's potoroo or ngilkat is Australia's most endangered marsupial, the rarest marsupial in the world, and one of the world's rarest critically endangered mammals, found in south-western Western Australia. It is a small nocturnal macropod that lives in small groups.