RedactedNarrative: On 07/25/2020 at 19:15, subject was sailing his sailboat he just purchased on cheney reservoir with passenger on board. Subject tried to turn his sailboat around and collided with an anchored boat (knot complain''n) on the starboard side. Damage to the knot complain''n boat is to the gel coating from where the sailboat hit. The top of the boat, windshield, and seats were damage from the mast of the sailboat when it fell on the boat. There were no injuries and proper pfds were used. Information was exchanged between parties. Kansas park ranger created the initial report and passed the information along to me, game warden. I conducted follow up interviews and verified that the initial report was accurate. The initial report from ranger is attached. This is all i have to report at this time.