RedactedNarrative: Victim 1 was water skiing while Operator 1 was operating Vessel 1. Victim 1 fell and got back up while Operator 1 slowly increased the speed to 10mph. Victim 1 felt a pop in their knee, let go of the rope and fell. Victim 1 was wearing a PFD and was able to signal to Operator 1 who picked up Victim 1. Operator 1 then went to the west ramp where Victim 1 was transported to the hospital and received further medical attention.