RedactedNarrative: On May 20, 2017, Operator1 and 3 friends went to the lake around 12:00 pm.  Upon occupant interviews, it is accurate that vessel operator, Operator1, had started drinking upon arrival at the lake and continued to consume alcoholic drinks all through the day.  They put in at Cookeville Boat Dock and went toward Sligo Marina for lunch and beverages.  They departed Sligo and headed towards Pate''s Ford Marina.  They arrived and had more drinks and ate dinner.  The occupants didn''t feel safe riding back to Cookeville Dock, so they called for a ride to pick them up.  Operator1 refused and drove from Fish Lips Bar (Pates Ford Marina) at approximately 9:30 pm.  Operator1 was heading back to Cookeville Boat Dock, but left the main channel and entered Pine Creek.  He grounded his vessel on a shallow shoal that went to a small island.  Officer had made contact with Operator1, and Operator1 stated he was at Davie''s Island.  The island is approximately 12.6 miles away from Operator1''s actual location.