page_title: Watsons Bay, New South Wales
section_title: Sydney Harbour defences WWII
hierarchical_section_title: Watsons Bay, New South Wales / History / Sydney Harbour defences WWII
caption_attribution_description: English: Sydney Harbour anti-submarine boom net winch house foundations
context_page_description: 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. 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.
context_section_description: In 1942, during World War II, the Sydney Harbour anti-submarine boom net was constructed on Georges Head and was designed to prevent enemy submarines from entering into Sydney Harbour. The boom net spanned the entire width of Port Jackson and a boom net winch house was located on Liangs Point, Watsons Bay.
  On the night of 31 May 1942, three Japanese midget submarines attempted to enter Sydney Harbour in what became known as the Attack on Sydney Harbour. One of the Japanese midget submarines became entangled in the boom net; and, after unsuccessful attempts to free the submarine, the crew detonated charges within the sub, killing themselves and destroying their sub in the process.
  During this period, Nielsen Park was used as an anti-aircraft base. The base had its own interim wooden barracks, searchlights and anti-aircraft guns.
  In Gap Park, a gun emplacement for a small calibre gun, which was never installed was also intended for use during World War II.
caption: Foundations of the anti-sub boom net winch house
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