RedactedNarrative: Operator of Vessel 1 (Operator1)  borrowed Vessel one from the owner and had been operating the vessel most of the day.  When evening approached, Operator1 stated; he felt operating someone else boat at night was not a good idea so, he decided to return it.  On his way back, he did not see Vessel 2 on it's mooring and struck it.  Operator1 did not recall but believed he was thrown from the boat upon impact, swam to the beach and blacked out.  He recalled waking up to the sunrise, making his way to his car and driving home.  Operator1 did not seek medical attention and refused medical attention when offered.  Several witnesses stated; Operator1 had been drinking and was operating Vessel one at a high rate off speed close to other vessels.  The investigating officer issued Operator1 citations for leaving the scene of an accident and for careless and negligent operation.
   