RedactedNarrative: Vessel was operated by unknown person.  Operation was at night and vessel didn't have any lights on.  Operator was traveling at an unsafe speed and ran aground approximately 30 feet from shore.  One passenger was ejected and landed on the rock shore striking his head.  While injured passenger was being attended to by nearby home owners the operator was able to get vessel off the rocks and fled scene.  Passengers indicated that operator had been under the influence of alcohol but did not indicate who the individual was.  The vessel was described as approximately 16 feet in length, aluminum fishing vessel with a small 40 hp motor and a green hull.