Lion Island (New South Wales)

Broken Bay, a semi-mature tide-dominated drowned valley estuary, is a large inlet of the Tasman Sea located about 50 kilometres (31 mi) 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. Broken Bay has its origin at the confluence of the Hawkesbury River, Pittwater, and Brisbane Water and flows openly into the Tasman Sea. The total surface area of the bay is approximately 17.1 square kilometres (6.6 sq mi).

Pearl Beach is a suburb of Central Coast Council on the Central Coast of New South Wales, Australia. Pearl Beach was assigned 'suburb' status by the Geographical Names Board of NSW on 25 October 1991.

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.

Pittwater is a semi-mature tide dominated drowned valley estuary, located about 40 kilometres (25 mi) north of the Sydney central business district, New South Wales, Australia; being one of the bodies of water that separate greater Metropolitan Sydney from the Central Coast. Pittwater has its origin from the confluence of McCarrs Creek, to the west of Church Point and a number of smaller estuaries, the largest of which is Cahill Creek, that joins the Pittwater north of Mona Vale. The Pittwater is an open body of water, often considered a bay or harbour, that flows north towards its mouth into Broken Bay, between West Head and Barrenjoey Head, less than 1 kilometre (0.62 mi) from the Tasman Sea. The total area of the Pittwater is 18.4 square kilometres (7.1 sq mi) and around ninety percent of the area is generally administered by the Hawkesbury–Nepean Catchment Management Authority, in conjunction with Northern Beaches Council. The land adjacent to the Pittwater was occupied for many thousands of years by the Kuringgai peoples, an Aboriginal Australian grouping of uncertain origin. They used the river as an important source of food and a place for trade.Pittwater was named Pitt Water in 1788 in honour of William Pitt the Younger, the then Prime Minister of the United Kingdom.

The Barrenjoey Head Lighthouse is a heritage-listed lighthouse at Barrenjoey Headland, Palm Beach, Northern Beaches Council in Sydney, New South Wales, Australia. It was designed by James Barnet, the New South Wales Colonial Architect and built by Isaac Banks. It is also known as Barrenjoey Head Lightstation. The property is owned by Office of Environment and Heritage, an agency of the Government of New South Wales. The lightstation was added to the New South Wales State Heritage Register on 2 April 1999. Completed in 1881, the current lighthouse is the third light constructed on the Barrenjoey headland in the Northern Beaches district of Sydney. The light is automated and operated by Transport for NSW; while the buildings and headland are managed by the NSW National Parks & Wildlife Service as part of Ku-ring-gai Chase National Park.

Palm Beach Water Airport (IATA: LBH) is a water aerodrome used by seaplanes. It is located in the suburb of Palm Beach, Sydney, New South Wales, Australia.

Hazard was an Australian sloop wrecked in 1809. Hazard was of unknown tonnage, probably built in Sydney in 1800. It was owned by Thorley & Griffiths and had been chartered to Lusk.In March 1809, three ships, Argument, Experiment, and Hazard left Pittwater, New South Wales, bound for Sydney with a cargo of wheat. A squall arose and Hazard was driven onto Box Head, 2 miles (3.2 km) north of Barrenjoey, New South Wales. Her master, Andrew Lusk, got into the ship's boat but was unable to persuade his single crew member, a boy, to join him. The boy was washed overboard and was dragged from the surf by some Aborigines. Lusk attempted to make it to shore but the boat capsized and Lusk drowned.

Box Head is a coastal locality, not a suburb, of the Central Coast region of New South Wales, Australia, in the Central Coast Council local government area.It is within Bouddi National Park in close proximity to several beaches, including Iron Ladder Beach, Lobster Beach and Tallow Beach. The headland itself marks the northern entrance to Broken Bay from the Tasman Sea. Box Head refers to the large headland that viewed from the ocean resembles a box. This part of the coastland was first sighted by Europeans under James Cook, who named features of the area such as Cape Three Points and Broken Bay following his discovery of Botany Bay.

Brisbane Water is a wave-dominated barrier estuary located in the Central Coast region, north of Sydney, New South Wales, Australia. Brisbane Water has its origin at the confluence of the Narara and Coorumbine Creeks, to the south–east of Gosford and travels for approximately 18 kilometres (11 mi) in a southerly direction to its mouth at Broken Bay, about 7 kilometres (4.3 mi) from the Tasman Sea, at Barrenjoey Head. A number of towns and suburbs surround the shores of Brisbane Water, including Blackwall, Booker Bay, Davistown, Empire Bay, Erina, Ettalong Beach, Gosford, Green Point, Hardys Bay, Kilcare, Kincumber, Koolewong, Phegans Bay, Point Frederick, Point Clare , Saratoga, Tascott, Wagstaffe, and Woy Woy. Contained within Brisbane Water is St Huberts Island, Rileys Island, Dunmar Island and Pelican Island; and adjoining the estuary is Brisbane Water National Park to the west and Bouddi National Park to the east. Forming part of the same tidal estuary system is a separate but connected basin, the Kincumber Broadwater, lying to the east of Davistown. The total catchment area of the river is approximately 165 square kilometres (64 sq mi). The land adjacent to the Brisbane Water was occupied for many thousands of years by Australian Aboriginal peoples, the Darkinjung and Kuringgai, who used the estuary and foreshore areas for cultural purposes.Brisbane Water was named in 1825 in honour of Sir Thomas Brisbane, a Governor of New South Wales, serving between 1820 and 1825.

Great Mackerel Beach is a suburb about 43 kilometres north of the Sydney central business district, from 2016 in the local government area of Northern Beaches Council, Sydney, New South Wales, Australia, formerly part of Pittwater Council. It is on the western shores of Pittwater in Ku-ring-gai Chase National Park, beside Currawong Beach, and near Coasters Retreat and Palm Beach.The resident population was 50 at the 2021 census; the median age was 57, with an average of 0.3 children per family and an average of 1.7 people per household. The population was 36 at the 2016 census, 301 at the 2011 census, and 103 in 2006. As of 2021 there were 111 private dwellings, with many people not listed as residents occupying properties during school holidays and weekends. Great Mackerel Beach is frequently referred to as Mackerel Beach or [Great] Mackeral Beach, although the spelling "Mackerel" is becoming standard.A nearby beach is called Little Mackerel Beach, often referred to as Currawong Beach.

Umina Beach is a suburb within the Central Coast Council local government area on the Central Coast of New South Wales, Australia. By road, it is 85 kilometres (53 mi) north of the Sydney CBD and 111 kilometres (69 mi) south of the Newcastle CBD. Umina Beach is locally known on the Central Coast as being on 'The Peninsula' (or 'Woy Woy Peninsula'). A natural peninsula that includes the towns of Umina Beach, Woy Woy, Blackwall, Booker Bay and Ettalong Beach. The main street, West Street, is the retail centre of The Peninsula with key national brands represented through Coles, Woolworths, Aldi and Bunnings. Moving from north to south, Umina Beach begins where Woy Woy and Blackwall end: at Veron Road and Gallipoli Avenue. Umina Beach is the most populated suburb on the Central Coast.

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.