I wasn’t going to reply as I’m afraid I don’t know anybody in Qld; I’m about two thousand miles south west of there. However as nobody else has so far… just over the NSW border is Tony Walsham, he of RCS fame, and he seems to know most of the players in that part of the world. He has a contact on his website, and he regularly posts on this forum. A PM to him might bring some results.
To pick up from Gant, in terms of local dangers in the waters off the coast is the most venemous creature on earth, the box jellyfish so be sure to seek local advice before going for a swim in the sea!
Steve