 The Coorong Game Reserve which was purchased by the Government of South Australia in 1968 was abolished on 14 January 1993 and its lands was added to the national park.The game reserve occupied part of the Coorong lagoon to the immediate west of Salt Creek and had an area of as of May 1982.The wetlands within the part of the national park containing the Coorong Lagoon form a complex of freshwater, estuarine, and hypersaline waterbodies with a unique diversity of habitats for plants and animals.