Question: 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?
Sentence (from "Waterfall Way"): Seven national parks, of which three are listed as World Heritage Areas by UNESCO and form part of the Gondwana Rainforests of Australia (formerly the Central Eastern Rainforest Reserves), are located on or close to the route.
Relevant evidence: No