RedactedNarrative: Vessel 1 was in operation, towing two persons on a tube behind Vessel 1, when Vessel 1 made a turn and the tube struck a wake, causing the tube to flip.  Both Occupants aboard the tube were ejected into the water.  One of the tubers (the Victim) suffered a knee injury and was transported to the hospital for medical care; it was later determined that the Victim had suffered a torn ligament in his knee.