Sydney Harbour anti-submarine boom net

The British aircraft carrier HMS Formidable passing through the anti-submarine boom in Port Jackson (Sydney Harbour) in 1945

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.[1] The boom formed part of the Sydney Harbour defences which also included artillery batteries and patrol boats.[2]

  1. ^ Coastal and Harbour Defence ofs of Sydney, Australia retrieved 22 November 2007
  2. ^ New South Wales Plaque