Rapid Bay

Rapid Bay is a locality that includes a small seaside town and bay on the west coast of the Fleurieu Peninsula, South Australia.

Rapid Bayis a locality that includes a small seaside town and 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. A pair of jetties are popular attractions for recreational fishing, scuba diving and snorkelling. The bay particularly known as a site for observing leafy seadragons in the wild. Its postcode is 5204.

Rapid Bay features in the creation myths of the Kaurna and Ramindjeri ppeoples most notably as the burial site of the nephew of the Kaurna creator ancestor known as Tjilbruke. There is uncertainty as to the Kaurna name for Rapid Bay, which has been cited as Patparno, Patpangga (meaning "south" or "south place"), and Yarta-kulangga, a popular campsite at Rapid Bay, whose name probably means "place of the separate country". However there is no evidence that any of these names was a place name for Rapid Bay.Prior to the establishment of the South Australian colony, whalers based on Kangaroo Island were known to have called at Rapid Bay though it was not so named until 1836. 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 (7 November 1836 – perhaps 7 July 1916), also named for the brig Rapid, was the first European child born on mainland South Australia. Claims that he was born at Rapid Bay have been refuted.Rapid Bay was briefly considered by Light as a potential site for the new colony's capital, but with the discovery of the Adelaide Plains it faded into quiet obscurity. On his first visit, Light created a garden then left the bay in the hands of Kangaroo Island sealers and indigenous people from the Encounter Bay area.

Rapid Bay is known for its steep cliffs, caves, beach, two jetties and associated artificial reef. A resident leafy seadragon population inhabits the bay and weedy seadragons are also occasionally seen.

It is considered to be among Australia's premiere scuba diving sites, and has been featured on SportDiver as one of the world's top nine dives. The ecological communities on the jetty piles are well established and attract large schools of fish including Old Wives and Zebra Fish. Over 70 species of fish have been recorded in Rapid Bay. Many marine invertebrates can be observed on the jetty piles and living among the debris on the seafloor. Iconic examples include the Giant Australian Cuttlefish and Blue-ringed octopus.Rapid Bay is also a popular recreational fishing site, with fishing possible from shore, boat, kayak and the deck of the public jetty. The historic industrial jetty is permanently closed due to its state of natural decay.

The first jetty at Rapid Bay was built in the late 1860s, described as "new" in 1867 and assessed by the Marine Board in 1871. It was considered well made but poorly designed owing to its south-westerly heading and the shallowness of water at its terminus. The jetty had been intended to feature a crane to assist with loading and unloading cargoes but the crane was lost in transit from Second Valley in some four-and-a-half fathoms of water where it was abandoned. The first jetty at Rapid Bay was constructed of timber and was intended for the export of wool and wheat. Wheat and lead were exported from Second Valley during the 1860s owing to the lack of a suitable road to bring those cargoes to the waterfront at Rapid Bay. The first Rapid Bay jetty's landward end was some 50 yards distant from the later BHP construction.

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 feet) length located 50 metres (160 feet) 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 snorkelers. The jetty features concrete decking, is artificially lit after dark and is a popular spot for recreational fishing.