What is a cave diving organisation which was formed in September 1973 that administers and supports cave diving activity in other parts of Australia including the Nullarbor Plain and  a town in inland New South Wales, Australia, located at the junction of the Macquarie and Bell Rivers?
Cave Divers Association of Australia: The Cave Divers Association of Australia (CDAA) is a cave diving organisation which was formed in September 1973 to represent the interests of recreational scuba divers who dive in water‐filled caves and sinkholes principally in the Lower South East (now called the Limestone Coast) of South Australia (SA) and secondly in other parts of Australia. Cave Divers Association of Australia:  While its major area of operation is in the Limestone Coast region of SA, it administers and supports cave diving activity in other parts of Australia including the Nullarbor Plain and Wellington, New South Wales. Wellington, New South Wales: Wellington is a town in inland New South Wales, Australia, located at the junction of the Macquarie and Bell Rivers.
Cave Divers Association of Australia