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Hint
Answer
Inland city named for its location by a river
Rockhampton
Modern town built to service a mine in outback South Australia
Roxby Downs
Coastal area in southern Tasmania with features called Boy and Dinghy, Pigsties Bay, and Shag Rock
Recherche Bay
Genus of parrots found in the eastern half of Australia (and a brand of sauces and condiments)
Rosella
Coastal area featuring mudflats and mangroves south of Broome
Roebuck Bay
Hawkesbury, Murrumbidgee or South Esk
River
Small town with a colourful name, close to the Wimmera-Mallee border in Victoria
Rainbow
South Australian town on the Murray River
Renmark
The river that flows through Townsville, and a virus that can be caught all over the country
Ross River
Suburb and surrounding peninsula in Brisbane
Redcliffe
Marsupial commonly seen in domestic gardens as well as parks and bushland
Ringtail possum
Southern region of NSW
Riverina
An island serviced by ferry from Perth
Rottnest Island
Inner suburb of Adelaide; inner suburb of Melbourne; town in Tasmania with Australia's oldest functioning bridge; NSW town settled in 1794; outback Queensland town on the Flinders river
Richmond
Bird (pictured) that is common in the towns, suburbs and bushland of eastern Australia
The original hint said 'inland port' because Rockhampton was founded as a river port. I was unaware that Port Alma had been renamed the Port of Rockhampton. The hint has been changed to something less ambiguous.