Sydney Harbour, near Clark Island. 23 October 2017.
Vessel near 33°51'33.16" S 151°14'33.41" E
She was launched on 11 March 2000 and is based in Sydney at HMAS Waterhen. A large minehunter by world standards, the 720 tonne, 52.5 metre MHC is propelled by a V8 diesel engine driving a controllable pitch propeller in transit, and three retractable thrusters whilst minehunting.
See RAN website http://www.navy.gov.au/hmas-gascoyne-ii