Image Gallery Five ships leave Sydney By ANI - January 21, 2017 0 773 (L-R) HMA Ships Adelaide, Melbourne, Newcastle, Parramatta and Gascoyne leave Sydney Harbour to take part in Exercise OCEAN RAIDER, one of the Royal Australian Navy's largest maritime warfare activities. (L-R) HMA Ships Adelaide, Melbourne, Newcastle, Parramatta and Gascoyne leave Sydney Harbour to take part in Exercise OCEAN RAIDER, one of the Royal Australian Navy’s largest maritime warfare activities.