RedactedNarrative: On June 15, 2022, at approximately 1020 hours, Glen Canyon Dispatch notified me of a vessel accident in the Wahweap Marina at the Boat Rentals Dock with no injuries. Due to existing incidents, Officer 2 and I were unable to immediately respond. 
  
  At approximately 1220 hours, we arrived at Boat Rentals and spoke to Director of Operations. Director of Operations told us that a client, identied as V1 Operator, in a Sumerset rental houseboat with Utah registration, was operating in the Waheap Marina and attempting to dock the houseboat into slip between two unoccupied rental houseboats. The Houseboat on V1's starboard side was a 59' Sumerset Houseboat with Utah registration and to V1's port was a Sumerset Houseboat with Utah registration. V1 collided with V2 with the front starboard hull of V1 on the rear port hull of V2. V1 Operator then accelerated and struck somewhere on the starboard side of V3 and collided "hard" with the dock. The wake caused by this action then caused the dock to rise and come down on top of an unoccupied private vessel (V4) docked in slip. V4 was identified as a California registration Sleekcraft Diplomat speedboat. V1, V2, and V4 were all moved prior to our arrival. Damage to V1 was described as scrapes to the front starboard and port hulls. Damage to V2 was described as scrapes to the rear port hull, broken railing, and a broken gate next to the railing. There was no noticeable damage to V3. Damage to V4 was described to be scrapes and dents to the the port side hull and rail.  V4 was moved prior to our arrival and its whereabouts were unknown.  Director of Operations also stated V1 Operator did purchase insurance on the houseboat, but the insurance only covers damage incurred to the vessel he was operating, not other vessels. The accident was witnessed by Lake Powell Marina employee, Witness.
  
  Witness stated he was giving an unrelated houseboat an orientation when V1 came into the slip quicklyand had a noticeable wake in a no wake zone. He believed that when V1 struck V2, V1 Operator could have reversed V1 instead of accelerating and prevented the damage to V3 and V4. Witness said that three houseboats can fit in the same slip, but it is a tight fit for all three houseboats. 
  
  On June 18, I reached V1 Operator by telephone who said he was operating the boat at the time of the accident. He said he had just left the fuel dock and was told to dock the houseboat himself into an available slip. He said he was pulling straight into the slip at under wake speed when wind took the vessel, he attempted to correct his approach and hit V2 then hit the dock a little hard. He said he did not think he hit or caused damage to V3,V4, or the dock. He said he saw the damage on V4 but did not know if he caused it. He said there were no injuires on this vessel, and he provided all the information for the Utah Boating Accident Report.
  
  V4's Owner's father said he fuled the boat owned by this daughter up at the fuel dock, and operated it to a slip next to the rental hosueboats. He stayed in the boat with the engine on in the slip without tying it up while the rest of the party went to the rental office. He said he heard a boat's engine revving near him and saw a houseboat that looked like it was "going fast". He said the houseboat hit another houseboat and then the dock and produced a wake. The wake caused the dock to rise and V4 boat to dip and then collide. He said there was not enough time for him to manuever to avoid the accident.