HMAS Onslow is one of six Oberon-class submarines, decommissioned in 1999 and previously operated by the Royal Australian Navy. The submarine was named after the town of Onslow, Western Australia, and Sir Alexander Onslow, with the boat's motto and badge derived from Onslow's family heritage. Ordered in 1963, Onslow was laid down at the end of 1967 by Scotts Shipbuilding and Engineering Company in Scotland, launched almost a year later, and commissioned into the RAN at the end of 1969.
Although never involved in war, three major incidents occurred during Onslow's career.
Wikipedia https://en.wikipedia.org/wiki/HMAS_Onslow
Address (Unnamed Road), Sydney 2000, Australia
Coordinates -33°52'8.418" N 151°11'58.601" E