UNIT 1 WAS FOLLOWING UNIT 2 SOUTH ON THE ICW. UNIT 2 ATTEMPTED TO TURN RIGHT AND SAW UNIT 1 APPROACHING ON A COLLISION COURSE AND TRIED TO STEER BACK TO HIS LEFT. UNIT 1 TRIED TO STEER RIGHT TO AVOID A COLLISION, BUT STRUCK UNIT 2 IN THE RIGHT SIDE OF THE PWC. OPERATOR OF UNIT 2 ALSO HAD HIS RIGHT LEG STUCK BY UNIT 1 BUT DID NOT WANT MEDICAL ASSISTANCE.