Chadinga Conservation Park, formerly the Chadinga Conservation Reserve, is a protected area in the Chadinga Dunes on the western side of Lake MacDonnell, near Penong, South Australia. The park covers 11,854 hectares (45.8 sq mi) of coastal dunes, containing a lake and areas of Mallee scrub. It is commonly called "Tuckamore" by local people. The dunes extend up to 3 km inland and form a habitat for the spinifex hopping mouse.