RedactedNarrative: Operator was returning to harbor after taking a brief boat ride.   A sailboat was departing the harbor and he gave a wide berth by staying to the starboard side of the channel.  There are 2 red buoys that the operator acknowledged he was aware of but he thought he had passed the 2nd buoy but had gone right of the buoy instead striking the rocks.  He then grounded.  Six people were injured.  Operator's gps system was on but admits he was navigation primarily with his eye sight.