I know I have posted this clip before and, yes, Oyster Farmer was filmed on the Hawkesbury River but it's one of my favourite movies and the Clyde, on whose banks "Riverbend" is situated, looks even better than the Hawkesbury.
As for the Clyde River oysters, even though they grow big and fat on my jetty as I don't eat them myself, I am told they're the best!
Enjoy!