RedactedNarrative: V2 collided with stern of V1 as they were both motoring down the lake, going the same direction.  V2 's initial impact was on V1's engine; V2 then traveled over V1 causing extensive damage.  V2 left the scene and traveled into a nearby cove; both occupants jumped out of V2 (which was sinking) and swam to the shore.  They were soon apprehended by street patrol.  Operator1 bruised his eye and occupant bruised her arm after impacting the vessel.  Occupant on V2 suffered bruises and cuts to her leg.  Operator2 was at fault for the accident.  He was under the influence of alcohol; his BAC was .14.