RedactedNarrative: Vessel 1 was struck by Vessel 2 (which was towing a tuber) in the stern. Vessel 2 went over Vessel 1 causing major damage to Vessel 1.  Occupants of vessel 1 left boat just prior impact avoiding more serious injuries.  Operator of vessel 2 had consumed alcohol but was not believed to be in an intoxicated condition.  An occupant from V1 was injured after being struck by a vessel.