A man who was flung off his boat into the churning seas during a violent storm has shared his extraordinary survival story. David Simpson, 64, was aboard his yacht M.V. Focus at Caloundra, off the northern tip of Bribie Island, on Queensland's Sunshine Coast on Tuesday. Mr Simpson was tying down a dinghy when strong winds rocked his boat and he was flung overboard after a massive wave hit the vessel. David Simpson, 64, (pictured) was aboard his yacht M.V. Focus at Caloundra towards the northern tip of Bribie Island on Queensland Sunshine Coast on Tuesday Things took an unexpected turn and strong winds rocked his boat and he was flung overboard after a massive wave hit the vessel (pictured)