So to sum up, my trip was the following so far : Sydney (5 days) -> Byron Bay (4 days) -> Brisbane (0.5 day) -> Noosa (3 days) -> Harvey Bay/Fraser Island (3 days) -> Airlie Beach/Whitsundays island (4 days) -> Magnetic Island (2 days) -> Cairns.
Awful story, his friend had to get him in the red water while the shark was still turning around. This colded me a little bit (ok it freaked me out), but probability is still bigger to get hit by the lightning.