I'm a very experienced diver (4000+ dives for work) and on Mon when I was kiting 50 mtrs straight out from the pier I missed a big fin which took off like lightning when I got a couple of meters away. Now this wasn't a dolphin and I'm guessing a bully (as i have seen a few before) I'm taking a punt it was 2 mtrs or just over.

Has anyone heard of sharks at sandgate? I'm not exactly scared of them but I did have it in the back of my mind for the day..