Hi Gang,
Can't let this one go pass.
I've been diving for many years [late 50's] and during that time I've been hunted by a GW and have had their company on several accasions [some of which I'm not aware of, I'm sure] and one where all the GW did was swim around us and snap its jaws, it was a quick exit that day!
The most common shark of a size to apparently do harm around is the Grey Nurse Shark!
I have dived with and handled many many GNS over many years. In fact I devised and held the first PADI Shark Diver Instructors certificate. I also started the Grey Nurse Shark ID program and the protection of the GNS. Swimmers and Divers are safe from GNS as they are fish eaters.
Now Bull Sharks are a different kettle of fish.
They will go into fresh water [up and pass Wisemans Ferry, Brad] and they will eat us.
This is the SHARK I fear and I always consider the type of water before swimming/diving.
That is: fresh water at the head of a river; canal system; marinas; lake systems or anywhere that has discoloured water.
The chances of being biten are propotional to how many times you go in the water,
The more you go in the less the chance will be!
Phillip
On the Wallaby at Yiyili, 125km west of Halls Creek WA.
PS. I have been biten by a Port Jackson on the leg!