 It was constituted as a national park upon the proclamation of the "National Parks and Wildlife Act 1972" on 27 April 1972 which repealed five items of existing legislation including the "Fauna and Flora Reserve Act 1919".At proclamation in 1972, it consisted of the following land in the following cadastral units as well as the entirety of the Casuarina Islets - section 11 in the Hundred of Borda, section 64 in the Hundred of Gosse, section 17 in the Hundred of McDonald and section 66 in "South out of Hundreds".On 15 October 1993, land in section 11 of the Hundred of Borda, section 64 of Hundred of Gosse and Allotments 50 and 52 in DP 38340 and with an area of was removed from the national park and consitututed under the "Wilderness Protection Act 1992" as the Ravine des Casoars Wilderness Protection Area.