UNIT 1 AND 2 WERE RIDING SIDE BY SIDE. UNIT 2 SPED UP AND CUT INFRONT OF UNIT 1. UNIT 1 T-BONED UNIT 2. UNIT 1 WAS CARRYING 3 PASSENGERS TOTAL AND UNIT 2 WAS CARRYING 2 PASSENGERS TOTAL.  THE PWCS HIT KNOCKING PASSENGERS IN THE WATER AND CAUSING INJURIES.