Trams in Sydney The original cable line was extended via Miller and Falcon Streets to Crows Nest, and later the whole line was electrified and extensions were built to various termini around the Lower North Shore. The history of the North Sydney tramway system can be divided into three periods – the first from the original opening in 1886 to 1909, when the McMahons Point line opened. The second period covers the time until the Wynyard line was opened across the Sydney Harbour Bridge in 1932, and the third from then until the general closure of the system in 1958. In the initial
Sydney Harbour anti-submarine boom net Sydney Harbour anti-submarine boom net 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 Green Point, Watsons Bay to Georges Head, on the northern side of Sydney Harbour. The boom formed part of the Sydney Harbour defences which also included artillery batteries and patrol boats. Construction of the boom commenced in January 1942 and the boom and gates were fully operational by August 1942. For over three years, entry to Sydney Harbour was restricted by the boom net.