RedactedNarrative: Vessel 1 and 2 (rentals) just returned from a 2.5-hour trip on the lake. Upon returning and while docking, marina staff noticed significant damage to the front portions of the port and starboard side toons of vessel 1. Damages to vessel 2 (PWC) which include significant cracks in the fiberglass hull, were noticed once it was removed from the water. The only confirmed persons onboard either vessel 1 or 2 were the operator (1) and two other male passengers (2 & 3) listed in the WICR. Positions 4 & 5 are unknown witnesses. Operator person #1 admitted to operating vessel 1 but neither himself or the other two confirmed passengers admitted to operating the PWC. In addition, none of the suspects admitted to what they hit while boating to cause the damages done to both vessels. Operator 1, admitted to operating vessel 1. Passengers 2 and 3 confirmed that Operator 1, was operating vessel 1 and was intoxicated at the time. Very little witness cooperation was had during the investigation.