Rapid Bay, South Australia
Rapid Bay shoreline looking towards Second Valley.
|Time zone||ACST (UTC+9:30)|
|• Summer (DST)||ACDT (UTC+10:30)|
|Location||100 km (62 mi) S of Adelaide|
|LGA(s)||District Council of Yankalilla|
Rapid Bay is the name of both a locality (postcode 5204) including a small seaside town and a small bay on the west coast of the Fleurieu Peninsula, South Australia. It lies within the District Council of Yankalilla and its township is approximately 100 km south of the state capital, Adelaide. It is well known for its limestone quarry and its pair of jetties which are popular sites for recreational fishing, scuba diving and snorkelling.
South Australia Colonial Surveyor General Colonel William Light made his first landfall on mainland South Australia at Rapid Bay on 8 September 1836. The site was named after Light's ship, the 162 ton brig Rapid. To mark this historic landfall the Colonel's initials, "W.L.", were carved into a large boulder – a replica is visible in the township, while the original is stored in the South Australian Museum, in Adelaide. John Rapid Hoare, the first European child born on mainland South Australia, was delivered at Rapid Bay on 7 November 1836.
The Broken Hill Proprietary (BHP) constructed the town, an ore-loading jetty and a high voltage power line from Willunga during the period 1938 to 1942 as part of the works undertaken to establish the limestone quarry. Mining commenced in 1942. The limestone was used as a flux in the company's steelworks at Whyalla in South Australia, and Newcastle and Port Kembla in New South Wales.
Rapid Bay is known for its imposing cliffs, caves, beach, two jetties and artificial reefs. A resident leafy seadragon population inhabits the bay and weedy seadragons are also sometimes seen. It is considered to be one of Australia's premiere scuba diving sites, and has been listed featured on SportDiver as one of the world's top 9 dives. The ecological communities on the jetty pylons are well established and attract large schools of fish including Old Wives and Zebra Fish. At least 49 species of fish have been recorded in the vicinity of the Rapid Bay jetties. Giant Australian Cuttlefish and Blue-ringed octopus can also be found on the sea floor.
It is also a popular recreational fishing site, though the longer historic jetty is closed to fishermen due to its state of natural decay.
The BHP Jetty was originally 490 metres (1,600 ft) long, with a 'T' section of 200 metres (650 ft) length for ship-loading. The jetty terminated in 9.1 metres (30 ft) of water (at lowest tide). Originally built by BHP and later operated by Adelaide Brighton Cement, the jetty ceased commercial operations in 1991. It suffered storm damage in 2004, after which it was progressively closed in stages for the purpose of ensuring public safety. Above the water, the jetty is slowly decaying and is off-limits to the general public. Below the water, the jetty provides habitat for a wide variety of temperate marine species. Since its closure, the above-water structure has also become an increasingly valuable roost for seabirds.
Construction of a new jetty of 240 metres (790 ft) length located 50 metres (160 ft) east of the BHP jetty was completed in 2009 to replace the public amenity lost by the progressive closure of the BHP jetty.
The new jetty has since been colonised by marine life and augments the more established ecological communities on and around the historic jetty. At the seaward end, a staircase provides safe and easy entry to the water for divers and snorkellers. The jetty features concrete decking, is artificially lit after nightfall and is a popular spot for recreational fishing.
Wreck of HMAS Hobart
An artificial reef exists 5 kilometres (3.1 mi) north-northwest of Rapid Head (i.e. the headland at the west side of the bay). In 2002, HMAS Hobart, a decommissioned guided missile destroyer, was scuttled there in 30 metres (98 ft) of water to create a scuba diving site.
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- City of Holdfast Bay: Tjilbruke Heritage & the Kaurna People
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- Australia 'the best destination for shore diving'
- "9 world's best dives" SportDiver.com. Accessed 2014-03-20.
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