RedactedNarrative: Subject was cruising in vessel LA 3118 FJ enroute to go duck hunting across Grand Lake in Plaquemines parish at approximately 6 a.m. The vessel was a 16' flatboat with a 35hp go-devil surface drive tiller operated motor.  Due to the very rough and windy conditions on the open lake, the vessel took a large wave over the side/stern that flooded the vessel in moments.   The subject was able to grab a type IV and type III pfd as he went in the water.  He was not able to properly put on the type III pfd and he held onto the pds as he floated/swam to the shoreline.  He was in the water for about 2 hrs.  At 12:45 p.m. a USCG helicopter spotted the subject standing on the shoreline. A St. Bernard Sheriffs office Marine Division vessel picked up the subject and transported him to Delacroix, LA to seek medical attention.  LDWF spoke with the subject after he had refused medical treatment at the launch in Delacroix  The type of incident was a flooding followed by capsizing of the vessel. Contributing factors include weather and operator inexperience.  Alcohol and drug use are not suspected.
NameOfBodyOfWater: GRAND LAKE
NearestCityTown: DELACROIX                     