RedactedNarrative: OPERATOR 1 WAS OPERATING VESSEL 1 WHILE TOWING 2 WATER SKIERS ON A WATER TUBE. AS OPERATOR 1 WAS UNDERWAY PULLING THE 2 WATER SKIERS BEHIND VESSEL 1, THE WATER TUBE STRUCK A WAVE CAUSING BOTH OF THE WATER SKIERS TO BOUNCE UP AND BACK DOWN ON THE TUBE. SKIER 2 LANDED ON SKIER 3 ON THE TUBE CAUSING SKIER 3 TO SUSTAIN INJURIES. THERE WAS NO OTHER INJURIES SUSTAINED FROM THIS INCIDENT. VESSEL 1 DID NOT SUSTAIN ANY DAMAGE.