Long Reef (New South Wales)

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Coordinates: 33°44.526′S 151°19.0′E / 33.742100°S 151.3167°E / -33.742100; 151.3167
Source: Wikipedia, the free encyclopedia.

Long Reef (New South Wales)
Long Reef photographed from Dee Why
Highest point
Elevation45 m (148 ft)
AHD 
Coordinates33°44.526′S 151°19.0′E / 33.742100°S 151.3167°E / -33.742100; 151.3167
Geography
Long Reef (New South Wales) is located in New South Wales
Long Reef (New South Wales)
Long Reef (New South Wales)
LocationCollaroy, New South Wales, Australia
Geology
Age of rockTriassic
Aerial view of Long Reef Beach, headland, and golf course; Collaroy Beach at upper left

Long Reef is a prominent headland on the Northern Beaches of Sydney, Australia. Connected to the mainland by a tombolo, the reef has an extensive wave-cut platform. Long Reef is a popular recreational destination and is one of the more interesting geological areas in Sydney.[1]

Geology

Wave-cut platform at Long Reef

Some of the oldest rocks in the Sydney area may be seen at Long Reef. Primarily from the

Hawkesbury sandstone, is absent at Long Reef. It is present at Dee Why headland, a small distance to the south, separated by a fault under Dee Why beach.[1][2]

A

haematite. Perched water tables produce a number of small freshwater springs on the cliff face. Evidence of faults and folding can be seen at Long Reef. The highest point of Long Reef is composed of Newport Formation sandstone which overlies the Garie Formation.[4][5]

Fossils

Bald Hill Claystone

Extensive rock-falls of grey claystone are found below the cliff face on the southern side. These rocks often contain plant fossils, the commonest being the

horsetail, Phyllotheca. Less often, fossils of a shrub-like seed fern (Dicroidium) may be found.[6]

In 1986, part of a fossilized mandible (jawbone) of a giant

temnospondyl, dated to the Triassic period, was given the name Bulgosuchus gargantua. It is only known from Long Reef.[8][9]

The original Triassic vegetation is oligotrophic forest.[2]

History

The original human inhabitants were the indigenous Australians, the Kuringgai of the Eora nation. The arrival of white people saw the decimation of the Aboriginals in the late 18th and early 19th century. Their original name of the area is not known. The first white people to set foot in the area were Governor Arthur Phillip and his exploration team, when travelling north to Broken Bay on 22 August 1788. The name "Long Reef" was in use by 1814.[10]

The shipbuilder William Cossar was granted 500 acres (202 hectares) at Long Reef in 1815.[11] A farm of 52 cleared acres at Long Reef was advertised for sale in 1825.[12] One original fisherman's hut remains at Long Reef, it dates from the 1870s.[10] Long Reef was owned by the Salvation Army from 1900 to 1912.

Ship incidents

Despite the prominent headland, no

Australian National Shipwreck Database[note 1]
(not including some of those listed above).

SS Collaroy

The stranded SS Collaroy, circa 1881

In 1881, the

Collaroy. The ship was eventually returned to service, until being wrecked at Eureka Point, California in July 1889.[17][18][19]

Myola shipwreck

SS Myola was a 655-ton screw steamer, 55 metres long, built in Middlesbrough in the United Kingdom. Myola left Newcastle on 1 April 1919 bound for Sydney with a cargo of 675 tons of coal. Off Long Reef, the ship was hit by a large wave and the collier sank. Four miles behind, the steamer South Bulli observed distress flares and assisted in picking up survivors. However, four lives were lost. The wreck of Myola was found off Long Reef in 1994 in 48 metres of water, lying on its port side.[20]

SS Euroka at Long Reef

Euroka

The 170 ton iron

Lake Macquarie. On the voyage to Sydney the steamer ran aground several times. The ship took on water, and captain Benton abandoned the ship at 5pm on 19 October 1913. Eventually, Euroka ran aground in five metres of water at Long Reef with no loss of life. The wreck of Euroka was sold for £155. Salvaged parts of the ship were removed and sold. Eventually the remains of the vessel were abandoned, and broke up in a wide area. In May 1915, a salvage crew dived on the wreck. They found the wreck of another vessel, another collier, Susannah Cuthbert, which ran aground on the reef on 7 July 1875.[15][21]

Recreation and facilities

Many opportunities exist for recreation at Long Reef. Walking, surfing, swimming, fishing, snorkeling

hang-gliding and exploration of the rock platform at low tide are popular.[22][23][24][25]

Many thousands of school students have visited Long Reef on school excursions. The Long Reef Golf Club was formed in 1921. Public facilities include a viewing platform, public toilets, showers, picnic areas, electric barbecues and a kiosk.[26] Free parking can be difficult on busy days.[27]

Scuba diving and fish

yellowtail kingfish, blue groper, Port Jackson sharks, red morwong, wobbegong, large cuttlefish and the rare grey nurse shark. Large shoals of small fish are also frequently seen in this area, including pomfret, yellowtails and bullseyes.[28]

Birds and sea life

Long Reef is an important site for many species of migratory shorebirds. Sea birds uncommonly seen in Sydney include the Ruddy turnstone, Bar-tailed godwit, Grey-tailed tattler, Red-necked stint, Black-browed albatross, Little penguin, Sooty oystercatcher, Osprey, Antarctic prion, Red-tailed tropicbird,[29] Double-banded plover and the Pacific golden plover.[30]

A variety of invertebrates live on the reef, some of which may be spotted at low tide. They include

Neptune's necklace grow on the reef.[31][32]

Intertidal rock pools

Blue angel at a rock pool, just south of the Long Reef headland
High densities of Hormosira within the intertidal zone at Long Reef

Hormosira banksii) is abundant in and around the rock pools. Sea grasses include Zostera capricorni
.

blue-ringed octopus is a dangerous resident of rock pools. Occasionally the gloomy octopus will be found in a larger pool. The banded periwinkle may be seen in the splash zone in rock cracks above the rock pools. Another mollusc found in the pools is Thylacodes sipho
, known as a "worm shell".

The waratah anemone and green snake lock are common sea anemones. Others include the white-striped anemone and the red anemone.

Sea urchins include

carpet sea star, velvet sea star, brittle star and the dwarf cushion star
.

purple rock crab. Barnacles in the inter-tidal zone include the rose barnacle and six sided barnacle
.

Fish may be isolated in the rock pools at low tide, such as the smooth toadfish (

Tetractenos glaber), juvenile mullet and goby (Favonigobius lateralis).[33][3][34]

Flora and fauna

bitou bush. The grassy area at Long Reef is a declared "Threatened Ecological Community". Bushcare efforts have been made to reduce invasive weeds and encourage local flora and fauna.[35]

emerald-spotted tree frog.[36]

Notes

  1. ^ [16] The source is a database. To retrieve the list of ships, select "New South Wales" for the State/Territory field and type "Long Reef" in the "Where lost" field, then click the "Search" button at the bottom. In the list of ships that appears, click on the individual ship names to see the cause of sinking.

References

  1. ^ a b c John Martyn. "Towards a Richer Understanding of Local Geology". STEP INC. Retrieved 22 February 2018.
  2. ^ a b Gregory Retallack. "Triassic Paleosols in the Upper Narrabeen Group of New South Wales. Part II: Classification and Reconstruction" (PDF). Blogs.uoregon.edu. Retrieved 1 February 2016.
  3. ^ a b information sign at Long Reef – by the local council
  4. ^ NSW Department of Mineral Resources map. Sydney 9130, 1:100,000 scale dated 1983
  5. ISBN 0731392221
    , pages 96-98
  6. ^ Peter Hanington. "Reefcare – geology" (PDF). Retrieved 8 April 2018.
  7. ISBN 9780643102316
    .
  8. ^ "Bulgosuchus Damiani 1999 (tetrapod)". Fossilworks – Gateway to the Paleobiology Data. Retrieved 17 December 2021.
  9. ^ "Triassic Australia". Australia Through Time. Retrieved 25 February 2018.
  10. ^ a b John Morcombe, Manly Daily (20 May 2016). "Iconic headland was once owned by the Salvation Army but now it belongs to the public". The Daily Telegraph. Retrieved 2 May 2018.
  11. ^ "Dee Why". Dictionary of Sydney. Retrieved 25 February 2018.
  12. ^ "Early Farming". Reefcare. Retrieved 25 February 2018.
  13. ^ "Susannah Cuthbert". Wrecksite.
  14. ^ "Stranding of PS Collaroy, 1881" (PDF). Environment of New South Wales – Heritage branch. Retrieved 25 February 2018.
  15. ^ a b Morcombe, John. "Salvagers got doubly lucky". Manly Daily. Retrieved 25 February 2018.
  16. ^ "Australian National Shipwreck Database". Australian Government. Retrieved 5 March 2018.
  17. ^ "Stranding of the S.S.Collaroy". The Argus Melbourne. National Library of Australia. Retrieved 2 March 2018.
  18. ^ Smith, Tim. "Stranding of the P.S. Collaroy 1881" (PDF). New South Wales Department of Environment and Heritage. Retrieved 9 March 2018.
  19. ^ Hixson, Francis. "Wreck report for Collaroy, 1881". plimsoll.org. Archived from the original on 9 March 2018. Retrieved 9 March 2018.{{cite web}}: CS1 maint: unfit URL (link)
  20. ^ "Shipwreck – Myola". Australian National Shipwreck Database. Australian Government – Department of Environment & Energy. Retrieved 28 February 2018.
  21. ^ "Shipwreck – Euroka". Maritime Heritage. Retrieved 28 February 2018.
  22. ^ "Long Reef NE Hangliding, Retrieved April 8, 2018". Reefcare.
  23. ^ "Long Reef Surf Scene in the 50s and early 60s, Retrieved April 8, 2018". Reefcare.
  24. ^ de Groot, Marcelle. "Sydney Dive Site of the Week March 25 2014". Retrieved 8 April 2018.
  25. ^ seafarrwide. "Long Reef Coastal Walk". Retrieved 11 April 2018.
  26. ^ "Long Reef, Manly & Northern Beaches, Retrieved February 25, 2018".
  27. ^ "Things to do in Sydney – Long Reef". Retrieved 11 April 2018.
  28. ^ Sinclair, Steve. "Long Reef Wall, 50 Great Dives". Retrieved 2 March 2018.
  29. ^ Griffin, Robert. "Atlas of Living Australia – Phaethon rubricauda observation". Retrieved 10 April 2018.
  30. ^ "Long Reef Birdlife". Reefcare. Retrieved 10 April 2018.
  31. ^ "Long Reef Aquatic Reserve". Department of Primary Industries. Retrieved 25 February 2018.
  32. ^ "Long Reef Earthcache". Geocaching. Retrieved 25 February 2018.
  33. ^ "Grasslands Restoration Project". Reefcare. Retrieved 10 April 2018.
  34. ^ "Intertidal Animals of New South Wales" (PDF). Newcastle New South Wales. Retrieved 10 April 2018.
  35. ^ "Guided Reef Walks". Reefcare. Retrieved 4 August 2019.
  36. doi:10.7882/AZ.2008.013. {{cite journal}}: Cite journal requires |journal= (help
    )

Further reading

  • "ReefCare". Discover Long Reef. Rowena Barnett, Margaret Cox, Jane Easton, Ian Lambert, Lisa Lambert, Penny Lanser, Ben Wong and Peter Miller.

External links

Wikimedia Commons has media related to Long Reef (New South Wales).
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