I'm actually not worried about the noise and could just wear earmuffs, my concern is getting blocked ears because they take days to pop and it really irritates my T.
Cairns/Clifton Beach is a place where I had a beach holiday once. If not for box jellyfish, it would have been one of the best places in the world to relax on the beach. I hear there are special suits that can protect one against those stingers. Wow - the temperature of the water is a wonderful 28 degrees... I hope you have an unforgettable time there!