RedactedNarrative: Victim advised that he had launched his airboat at the ramp in Stockdale Cove and traveled into the narrow channel to see if there were any ducks staying in the upper end of the cove.  Victim advised that he had used the airboat all of last duck season and was comfortable operating the airboat in close quarter areas.  Victim said that he was traveling at approximately 10-15 mph when the accident occurred.  Victim advised that while he was traveling in the narrow channel he looked down for a second and when he looked up the airboat was headed towards the standing trees in the channel.  Victim swerved to miss the trees but it was too late and struck the trees on the port side of the boat.  Victim advised that he was thrown into the water and swam to shore, where he yelled for help.  Victim advised that the next thing he remembered was being in the hospital.  Victim advised that he had operated his airboat in the narrow channel numerous times and was aware of the trees and other hazards in the area.  Victim did advise that the trees were hard to see with the shadows created by the shoreline