I've always made a point of logging on & advising my destination. If I move - I advise. A few years ago a couple of young blokes in a 14ft tinny decided to venture onto Moreton Bay from the western Beach of Moreton Is. They got about a klm out & SPLASHO. Luckily someone (on the beach I think) saw what happened & contacted authorities. Coast Guard Redcliffe knew I was in the area & asked me to assist the blokes. As it turned out, someone got there before me but, to me, if VMR know where you are, it's not only your on backside you're covering.