How interested are you in learning to sail, crew, possibly skipper etc vs wanting to have casual times out having social and other activities eg partying RPYC, swimming, paddling, snorkeling, gin and tonic ing?
straight gin no tonic.. BUT.. preferable RUM for an old pirate.
Any particular trips (eg to Rockingham for w/e ) or longer ones (eg Mandurah for a few days) etc you would like to do once competent at ocean sailing?
River and ocean .. and so different
What Andrew D. is saying about this Meetup Group
Great fun, minimal cost contribution, learn new skill ( sailing ), access to associated activities... swimming, snorkeling, diving