RedactedNarrative: VESSEL 2 WAS ANCHORED AND UNOCCUPIED APPROX 15 FT OFF THE SHORELINE.  VESSEL 1 WAS GOING TO LOAD THE PWC ONTO THE TRAILER.  VESSEL 1 OPERATOR ADVISED THAT HE DID APPROX 3 CIRCLES AT THE BOAT RAMP BEFORE LOADING THE PWC.  THE WAKE OF VESSEL 1 CAUSED VESSEL 2 TO IMPACT THE ROCKS ON THE SHORELINE CAUSING DAMAGE TO THE BOTTOM OF VESSEL 2'S HULL.