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?
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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. Its formation occurred after a series of diving fatalities in waterfilled caves and sinkholes in the Mount Gambier region between 1969 and 1973 and in parallel to a South Australian Government inquiry into these deaths. The CDAA’s major achievement has been the dramatic reduction of fatalities via the introduction of a site rating scheme and an associated testing system which was brought in during the mid-1970s. 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.
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Wellington, New South Wales Wellington is a town in inland New South Wales, Australia, located at the junction of the Macquarie and Bell Rivers. It is within the local government area of Dubbo Regional Council. The town is 362 km from Sydney on the Great Western Highway and Mitchell Highway.
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Cockatoo Island (New South Wales) Cockatoo Island, a UNESCO World Heritage Site, is located at the junction of the Parramatta and Lane Cove rivers, in Sydney Harbour, Sydney, New South Wales, Australia.
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Bellman's Cave Bellman's Cave is a cave in the British Overseas Territory of Gibraltar.
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Carcoar, New South Wales Carcoar is a town in the Central West region of New South Wales, Australia, in Blayney Shire. In 2006, the town had a population of 218 people. It is situated just off the Mid-Western Highway 258 km west of Sydney and 52 km south-west of Bathurst and is 720 m above sea-level. It is located in a small green valley, with the township and buildings on both banks of the Belubula River.
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Macquarie Rivulet Macquarie Rivulet is a perennial river located in the Southern Highlands and Illawarra regions of New South Wales, Australia.
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Bundarra, New South Wales Bundarra is a small town on the Northern Tablelands of New South Wales, Australia. The town is located on Thunderbolts Way and on the banks of the Gwydir River, in the Uralla Shire local government area, 563 kilometres (350 mi) kilometres from the state capital, Sydney. At the 2011 census , Bundarra had a population of 404 and the surrounding area had 805 persons.
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Uluru Uluru (Pitjantjatjara: "Uluṟu "), also known as Ayers Rock and officially gazetted as "Uluru / Ayers Rock", is a large sandstone rock formation in the southern part of the Northern Territory in central Australia. It lies 335 km south west of the nearest large town, Alice Springs, 450 km by road.
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Colo, New South Wales Colo is a small town located north-west of Sydney in New South Wales, Australia. It is home to the Colo River and parts of the Wollemi National Park. The main road through Colo is Putty Road. The locality of Colo is bounded in the south and the east by the Hawkesbury River.
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Broken Bay Broken Bay, a semi–mature tide-dominated drowned valley estuary, is a large inlet of the Tasman Sea located about 50 km north of Sydney central business district on the coast of New South Wales, Australia; being one of the bodies of water that separate greater Metropolitan Sydney from the Central Coast. Broken Bay is the first major bay north of Sydney Harbour.
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Griffiths Island Griffiths Island, sometimes incorrectly spelled as Griffith Island, lies at the mouth of the Moyne River next to, and within the bounds of, the town of Port Fairy, in the Western District of the state of Victoria in Australia. Griffiths now has no permanent inhabitants, but is connected to the mainland by a causeway and is accessible on foot. It forms part of the Port Fairy and Belfast Coastline Protection Reserve and, as well as being a tourist attraction, is an important site in the context of the history of European settlement of western Victoria. It is managed by the Moyne Shire Council.
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Nelsons Plains, New South Wales Nelsons Plains is a primarily rural suburb of the Port Stephens local government area in the Hunter Region of New South Wales, Australia. It is situated on Seaham Road between the Hunter and Williams rivers. At the 2011 census the suburb had a population of 324.
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Hawkesbury River The Hawkesbury River (also Hawkesbury-Nepean River), is a semi–mature tide dominated drowned valley estuary located to the west and north of Sydney, New South Wales, Australia. The Hawkesbury River and its associated main tributary, the Nepean River, virtually encircle the metropolitan region of Sydney.
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Glenrock Lagoon Glenrock Lagoon, an intermediate freshwater small coastal creek, is located within the Lake Macquarie local government area in the Newcastle and Hunter regions of New South Wales, Australia. The lake is located near the Newcastle suburbs of Adamstown and Dudley and is situated about 153 km north of Sydney.
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Nambucca Heads, New South Wales Nambucca Heads is a town on the Mid North Coast of New South Wales, Australia in Nambucca Shire. It is located on a ridge, north of the estuary of the Nambucca River near the Pacific Highway, . Its 2011 population was 6,137, including 602 (9.7%) indigenous persons and 5,180 (83.3%) Australian-born persons in the Shire. The place name is derived from an aboriginal word meaning 'entrance to the waters'. It is a popular holiday and retirement destination.
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Anna Bay, New South Wales Anna Bay is the name of a suburb, a town and a bay in the Port Stephens local government area in the Hunter Region of New South Wales, Australia. The suburb and town are immediately adjacent to the north-eastern end of Stockton Beach and the town provides one of the major entry points to the beach here. Both were named after the bay of the same name which is now located in the adjacent suburb of One Mile.
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Boors Plain, South Australia Boors Plain (historically Boors Plains) is a rural locality at the north end of the Yorke Peninsula of South Australia, situated east of Moonta and south of Kadina. It is located in the Copper Coast Council.
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Mount Burrell Mount Burrell is a town and a mountain in the Nightcap Range that is located in the Tweed Shire in the Northern Rivers region of New South Wales, Australia.
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Murray River National Park Murray River National Park is a protected area in South Australia located between 180 km and 240 km north east of the Adelaide city centre. The national park was proclaimed in 1972 "to conserve a significant proportion of South Australia’s floodplain environments which are not represented widely in other reserve systems." The national park consists of three sections adjoining the Murray River and extending from near Loxton in the south west to near Renmark in the north-east. The first which is known as the ‘Katarapko’ section is located on the north side of the river between Loxton in the south and Berri in the north. The second section which is known as the ‘Lyrup Flats’ section is located on the north side of the river midway between Berri and Loxton. The third section is known as the ‘Bulyong’ section is located on the west side of the river upstream from Renmark. The national park is classified as an IUCN Category VI protected area.
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Nobbys Head Nobbys Head (Aboriginal: "Whibayganba") is a headland located on the southern entrance to Newcastle Harbour, New South Wales, Australia. The headland is situated above the Hunter River and the Tasman Sea of the South Pacific Ocean.
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Caparra Creek Caparra Creek, a perennial stream of the Manning River catchment, is located in the Mid North Coast region of New South Wales, Australia.
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Middle Harbour Middle Harbour (or "Warring-Ga"), a semi–mature tide dominated drowned valley estuary, is the northern arm of Port Jackson, an inlet of the Tasman Sea located north of Sydney central business district on the coast of New South Wales, Australia.