Little Wobby, New South Wales

HMAS Swan was a River-class torpedo-boat destroyer of the Royal Australian Navy (RAN). One of six built for the RAN, Swan was built at Cockatoo Island Dockyard, and entered service in 1916. The early part of the ship's career was spent on blockade duty in the Far East, before she was transferred to the Mediterranean for anti-submarine duty. Apart from performing shore bombardment during the Second Battle of Durazzo, Swan's wartime career was uneventful. The destroyer was placed in reserve in 1920, but was reactivated between 1925 and 1927 and assigned to Tasmania. Swan was decommissioned in 1928, stripped of parts, and sold for use as prisoner accommodation on the Hawkesbury River. After changing hands several times, the hull sank during gale conditions in 1934.

Patonga is a suburb of the Central Coast region of New South Wales, Australia, located on the north bank of the Hawkesbury River, southwest of Woy Woy. It is part of the Central Coast Council local government area.

Hawkesbury River railway station is a heritage-listed railway station located on the Main Northern and Central Coast–Newcastle lines in Brooklyn in the Hornsby Shire local government area of Sydney, New South Wales, Australia. The station serves the town of Brooklyn and is located on the southern bank of the Hawkesbury River. It was designed and build by the Department of Railways New South Wales. It is also known as Hawkesbury River Railway Station group and Brooklyn Station. The property was added to the New South Wales State Heritage Register on 2 April 1999.

The Hawkesbury River railway bridge is a heritage-listed railway bridge in New South Wales, Australia that carries the Main North railway line across the Hawkesbury River. It is located just north of the town of Brooklyn on the northern outskirts of Sydney. The railway bridge was to be the last link in a railway network that linked the state capitals Adelaide, Melbourne, Sydney and Brisbane and was a major engineering feat at the time. The original railway bridge was built in 1889 and replaced by the current bridge in 1946. The 1946 bridge was added to the New South Wales State Heritage Register on 2 April 1999.

Long Island is an elongated island of 73 hectares in the Hawkesbury River, about 50 kilometres (31 mi) north of the Sydney central business district,New South Wales, Australia. It is joined to the mainland at its south eastern edge by the railway causeway across Sandbrook Inlet. At the other end of this causeway is the Sydney suburb of Brooklyn in Hornsby Shire, to which Long Island belongs.Other islands in the Hawkesbury River include Dangar Island, Spectacle Island, Milson Island, Peat Island and Lion Island. As with Spectacle Island and Lion Island, Long Island is a nature reserve (73ha, notified in 1972), which means it is illegal to visit without permission from the N.S.W. Office of Environment and Heritage. The New South Wales Parks and Wildlife Service runs very infrequent guided tours of the island, for those who are interested in its flora, fauna, geology and Aboriginal history. Some of the best views of Long Island are from Lloyd Trigonometrical station, and Tipper's Lookout, both located to the west in nearby Muogamarra Nature Reserve. From these vantage points, it is possible to look down along the length of the island and see the mouth of the Hawkesbury River and Broken Bay in the far distance. Long Island was added to the Australian National Heritage List in December 2006.

Brooklyn is a suburb and the northern most town on the Pacific Highway in Sydney, New South Wales, Australia. Brooklyn is located on the northern outskirts of Sydney and is located in the local government area of the Hornsby Shire with a population of 722 as of the 2016 census. Brooklyn is surrounded by the Muogamarra Nature Reserve and occupies a strip of waterfront along the southern bank of the Hawkesbury River. The town provides a range of amenities and activities, while maintaining a quiet village atmosphere. Brooklyn provides convenient access for North Shore residents and day trippers to the Hawkesbury River and Pittwater waterways for boating, swimming and fishing, and to Ku-ring-gai Chase National Park and Muogamarra Nature Reserve for bushwalking and scenic views. Hornsby Council is currently developing a 'Brooklyn Master Plan' to provide for further improvement of the amenities in the area. Hawkesbury River railway station on the Main Northern railway line is served by NSW TrainLink services to the city and the Central Coast and Hunter. The Pacific Highway and the M1 Motorway are both nearby and provide easy access to the town. Ku-ring-gai Chase National Park borders the suburb to the south. Long Island runs parallel with the suburb on the opposite side of Sandbrook Inlet and is joined to Brooklyn by the railway causeway. Dangar Island is sited to the northeast.

Spectacle Island is a 36.4-hectare (89.9-acre) island in the village of Mooney Mooney that is located in the Hawkesbury River on the Central Coast of New South Wales, Australia. Spectacle Island is located on the junction with Mooney Mooney Creek and the Hawkesbury River. Spectacle Island is one of the two islands located in Mooney Mooney along with Peat Island. It is considered a protected nature reserve precinct and is part of the Brisbane Water National Park.

Cogra Bay is a suburb of the Central Coast region of New South Wales, Australia, located on the north bank of the Hawkesbury River 51 kilometres (32 mi) north of Sydney. It is part of the Central Coast Council local government area. Cogra Bay is bounded by the Hawkesbury River to the south, the mouth of the Mooney Mooney Creek to the west, Mullet Creek to the east, and the Brisbane Water National Park to the north. It consists of a number of properties accessible only by boat or by water taxi less than 10 minutes from Brooklyn on the southern side of the Hawkesbury River. Although, due to shallow water in some parts of the bay, there may be limited access at low tide. Cogra Bay residents enjoy an off-grid lifestyle, using solar power and rain water tank storage. The nearest railway stations are Brooklyn and Wondabyne.

Hungry Beach is situated beside Cowan Creek and the Hawkesbury River in Ku-ring-gai Chase National Park in the northern part of Sydney, Australia.The north facing beach is about one kilometre from the ruins of the Flint & Steel Guesthouse. The beach is protected by steep cliffs. Above the beach are caves and middens, and a small densely vegetated gully with a fresh water stream. Access to the beach is by private boat; there is no formal bushwalking track but the beach can be reached by foot from Flint and Steel Bay.Hungry Beach was known as a fishing area, particularly for shark, turtle and mulloway. In 1936, The Sydney Mail reported that an indigenous man was shot dead by shark fishermen at Hungry Beach. The newspaper says he was the last surviving member of the Barrenjoey people. In 1899, the wreckage of the steam launch "Hatte", lying on Hungry Beach was sold for £25.The beach allegedly gets its name from a fisherman who became hungry, waiting for three days for a large shark to leave the area. Previously, the shark attacked his rowboat while fishing.

Flint & Steel Guesthouse was situated on Broken Bay, north of Sydney, Australia. It was constructed from 1920 to 1965. The guesthouse and nearby waterways were resumed by the navy during the second world war. Navy personnel at nearby Hungry Beach were known to have frequented "Flint & Steel". The guesthouse was destroyed by fire in 1971.

The Hawkesbury River, or Hawkesbury-Nepean River, is a river located northwest of Sydney, New South Wales, Australia. The Hawkesbury River and its associated main tributary, the Nepean River, almost encircle the metropolitan region of Sydney. The Hawkesbury River has its origin at the confluence of the Nepean River and the Grose River, to the north of Penrith and travels for approximately 120 kilometres (75 mi) in a north–easterly and then a south–easterly direction to its mouth at Broken Bay, about 15 kilometres (9.3 mi) from the Tasman Sea. The Hawkesbury River is the main tributary of Broken Bay. Secondary tributaries include Brisbane Water and Pittwater, which, together with the Hawkesbury River, flow into Broken Bay and thence into the Tasman Sea north of Barrenjoey Head. The total catchment area of the river is approximately 21,624 square kilometres (8,349 sq mi) and the area is generally administered by the Hawkesbury–Nepean Catchment Management Authority. The land adjacent to the Hawkesbury River was occupied by Aboriginal peoples: the Darkinjung, Darug, Eora, and Kuringgai. They used the river as a source of food and a place for trade. In the languages of the traditional custodians the river is Deerubben or Dyarubbin.In March 2021, the river level rose, and many areas were flooded as part of the March 2021 Australian floods.

Mooney Mooney is a small waterfront village and suburb of the Central Coast region of New South Wales, Australia. It is located in the Central Coast Council local government area at the end of a peninsula extending southwards into the Hawkesbury River, that is situated 50 kilometres (31 mi) north of Sydney. Mooney Mooney has two islands which are Peat Island and Spectacle Island Mooney Mooney is where the Pacific Motorway and Pacific Highway cross from the Central Coast into the Greater Sydney Metropolitan area on the south side of the Hawkesbury River.