RedactedNarrative: Watercraft #1 was pulling out of the docks at the marina. WC #1 turned around and the stern collided with the swim platform on the stern of Watercraft #2. Watercraft #2 was four-pointed in the slip and unoccupied. An employee at the marina saw the incident occur. He called Operator #1 over and informed him that he hit another boat. Operator #1 acknowledged that he hit another boat but he did not see any damage and then drove off. The marina employee then contacted the owner of WC #2 and advised him of damage to his watercraft. The marina employee also called authorities and gave them the registration number and a description of the boat and the operator. Life jackets were not being worn and there were no injuries. Alcohol was not a factor.