The diving on reef is fantastic. If you have the time and money, you'd be crazy to come all this way and not see the reef, or an island or two. It's starting to head into the wet season up there, so you'll certainly get a taste of the tropics. Craig will be able to give you plenty of suggestions I'm sure.
There's plenty of diving off the coast of Adelaide also. An old navy boat was scuttled (sunk) a year ago off the coast south of Adelaide and you can swim all through the bridge, engine room etc. There was a pic in the paper earlier in the week showing how much sea weed, barnicles and fish have made it home. The water is still a little cool for the sharks, but you never know your luck! <img src="/forums/images/graemlins/smile.gif" alt="" />
Give me a call when you get here on 0413 038 619.
How long do you think you'll be in town?