ON JUNE 4, 2011, UNIT 1 WAS LEAvING THE WAKE ZONE AND HAD JUST GOTTEN OUTSIDE OF IT, WHEN UNIT 2 WAS COMING INTO HILTEN LANDING. UNIT 2 WAS APPROACHING UNIT 1 AT A SLIGHT ANGLE TO THE PORT SIDE OF BOTH UNITS. UNIT 1 WAS TRAVELING APPROXIMATELY 10 MPH AND UNIT 2 WAS TRAVELING AT APPROXIMATELY 30-35 MPH. UNIT 1 SAW UNIT 2 APPROACHING AND THOUGHT THAT THEY WERE GOING TO MISS EACH OTHER UNTIL THE LAST SECOND AND REALIZED A COLLISION WAS GOING TO OCCUR. UNIT 1 THEN TURNED THE WHEEL TO AVOID THE COLLISION BUT WAS TOO LATE. UNIT 2 COLLIDED WITH UNIT 1 AT A HIGH RATE OF SPEED AND WENT UP ONTO UNIT 1'S PORT SIDE AT THE BOW OF THE BOAT AND CONTINUED ALL THE WAY TO THE STERN. UNIT 2'S OPERATOR WAS DETERMINED TO BE UNDER THE INFLUENCE OF ALCOHOL AND PUT UNDER ARREST. DUE TO THE INVESTIGATIONS FINDINGS UNIT 1 DID NOT HAVE ANY LIGHTS ON UNTIL THE LAST SECOND BEFORE THE COLLISION OCCURRED WHICH WAS A CONTRIBUTING FACTOR IN THIS INCIDENT. THEREFORE UNIT 1 WAS CHARGED WITH NO RUNNING LIGHTS.