I was once surrounded by about 40 reef sharks at the Coral Sea, it was one of the highlights of my life so far! But watching the documentary Sharkwater was every bit as incredible. This is one of the most remarkable stories of environmental protection and adventure I have ever seen. You can see it too, because I happen to have some double passes to go and see a private advanced screening of Sharkwater on May 12 at Greater Union Cinemas on George Street in Sydney. All you have to do is tell me at aharper@wwf.org.au what your favourite marine creature is and why in 50 words or less and you could win a double pass!

There is tons more info on the coral sea and on the tickets at wwf.org.au/coralsea