Hornby Lighthouse

The Sydney Heads (also simply known as the Heads) are a series of headlands that form the 2 km (1.2 mi) wide entrance to Sydney Harbour in Sydney, New South Wales, Australia. North Head and Quarantine Head are to the north; South Head and Dunbar Head are to the south; and Middle Head, Georges Head, and Chowder Head are to the west and within the harbour. The Heads are contained within the Sydney Harbour National Park. Some features located on the heads are heritage-listed on the Australian National Heritage List; such as the Hornby Lighthouse, located on South Head, Australia's third-oldest lighthouse; Macquarie Lighthouse, Australia's first lighthouse, located 3 kilometres (1.9 mi) to the south on Dunbar Head; and the former Quarantine Station on North Head.

HMAS Watson is a Royal Australian Navy (RAN) base on Sydney Harbour at South Head, near Watsons Bay in Sydney, Australia. Commissioned in 1945 (after three years operating as HMAS Radar), the base served as the RAN's radar training school. In 1956, torpedo and anti-submarine warfare training were relocated to the base, and by 2011, Watson was the main maritime warfare training base, as well as providing post-entry education for maritime warfare officers, training for combat system and electronic warfare sailors, and command training.

The Sydney Harbour anti-submarine boom net was an anti-torpedo and submarine defence net that was in Sydney Harbour during World War II. It spanned the entire width of the harbour from Laing Point (formerly known as Green Point), Watsons Bay to Georges Head Battery, on the northern side of Sydney Harbour. The boom formed part of the Sydney Harbour defences which also included artillery batteries and patrol boats.

Watsons Bay is a harbourside, eastern suburb of Sydney, in the state of New South Wales, Australia. Watsons Bay is located 11 km north-east of the Sydney central business district, in the local government area of the Municipality of Woollahra. Watsons Bay sits on the end of the South Head peninsula and takes its name from the sheltered bay and anchorage on its western side, in Port Jackson (Sydney Harbour). It provides views across the harbour to the Sydney Harbour Bridge. The Gap is an ocean cliff on the eastern side with views to Manly at North Head and the Pacific Ocean. Vaucluse is the only adjacent suburb, to the south.

Doyles on the Beach is an Australian seafood restaurant founded in 1885. Located on Marine Parade in Watsons Bay, Sydney, it is Australia's oldest continually running fish and chip shop, currently owned by Michael Doyle. There is both an à la carte restaurant and a garden bar at the Marine Parade establishment. It has two sisters restaurants: Doyles Fishermans Wharf, also in Watsons Bay, and Doyles at the Sydney Fish Market.In 2021, the restaurant was named in GQ's list of the "18 most expensive restaurants in Australia".One of the restaurant's attractions is the view over Sydney Harbour of the downtown Sydney skyline four miles to the east.

Watsons Bay ferry wharf is located on the southern side of Sydney Harbour serving the Sydney suburb of Watsons Bay.

The Gap is an ocean cliff at South Head in the Eastern Suburbs of Sydney, Australia. The area, which faces the Tasman Sea, is located in the suburb of Watsons Bay. Although the cliff is a popular tourist destination, it has an infamy for suicides.

Caroline Byrne (8 October 1970 – 7 June 1995), an Australian model, was found at the bottom of a cliff at The Gap in Sydney in the early hours of 8 June 1995. Her then boyfriend Gordon Eric Wood (b. 1962), who at the time of her death was a chauffeur and personal assistant to businessman Rene Rivkin, was convicted of her murder on 21 November 2008 and spent three years in Goulburn Correctional Centre. He was acquitted of the conviction in February 2012.

Sow and Pigs Reef is a rocky reef in Sydney Harbour, New South Wales, Australia. The reef is situated on the eastern side of the main shipping channel between Middle Head and South Head. It is 150 metres (490 ft) long and up to 70 metres (230 ft) wide. Originally the reef was exposed and resembled a sow and her litter. Explosives were used to reduce the reef, however, and now the reef is only exposed at a very low tide. A number of ships have been wrecked or damaged after hitting the reef.

Edward Lombe was a merchantman and passenger three-masted barque built in 1828 by Thomas Brodrick, of Whitby, England.

Eastern Channel Pile Light, also known as the East Wedding Cake due to its shape, is an active pile lighthouse located at the Sydney Harbour, New South Wales, Australia, off Laings Point in the Vaucluse suburb of Sydney. It marks the eastern end of the Sow and Pigs Reef.

The Herald was an iron paddle steamer imported as frames from the United Kingdom and assembled in 1855 by Richard Johnson in Sydney Harbour, New South Wales, Australia, where she was registered. The Herald is one of the earliest iron paddle wheel steamers built in Australia, where she operated within Sydney Harbour. She was initially used on the fledgling North Shore route between Dawes Point and Blues Point by the newly formed North Shore Steam Company; however, due to not enough traffic to make her financially viable, she often performed tug duties. Eventually the North Shore Steam Company was wound up; the vessel was put up for sale but continued picking up business wherever it was available, operating as a tug, ferry, excursion boat and cargo vessel. By 1873 Herald was working to Mosman Bay and Neutral Bay in a somewhat irregular weekday timetable. In the late 1870s and early 1880s she ran as an excursion boat to Manly and a tug. On 1 April 1884 the starboard boiler blew out while the Herald was waiting to bring in a sailing ship about 400 yards from North Head, causing the vessel to sink.