A man has been bitten by a shark while snorkelling around the Great Barrier Reef.He and two other men were swimming from a private vessel on the western side of Lady Elliot Island in Queensland when the attack took place around 8am.He was bitten on the elbow and helped to shore by the other two men.LIVE UPDATES: US sub sinks Iranian warship, 87 bodies recoveredThe man was bitten off Lady Elliot Island on the Great Barrier Reef.