RedactedNarrative: OPERATOR 1 WAS OPERATING VESSEL 1 WHILE TOWING A WATER SKIER WHO WAS KNEE BOARDING. AS OPERATOR 1 WAS TOWING THE SKIER, THE SKIER TURNED SIDEWAYS CAUSING THE SKIER TO SUSTAIN INJURIES. NONE OF THE OTHER OCCUPANTS ON VESSEL 1 SUSTAINED ANY INJURIES AND THERE WAS NO DAMAGE TO VESSEL 1.