RedactedNarrative: Vessel capsized while attempting to turn around in the surf near the beach at Kathryn Abbey Hanna Park in Mayport Florida. operator said that at the time of the accident he was watching surfers, was going to turn around from south to east, went down a roller, then saw a big wave. 
  
  He sped up to keep the wave from crashing but started to nose dive.  He turned north to make the turn and the wave hit on his beam to capsize the boat. He was briefly under the boat then swam to shore.