RedactedNarrative: Owner/Operator stated he was pulling a kneeboarder. He was going approximately 19-20 MPH and the kneeboarder signaled she wanted to return to shore. The operator swung his watercraft in toward the dock and the kneeboarder swung out and let go of the tow rope toward shore. She glided across the water all the way to shore and went up onto the shoreline and struck a rock wall, causing injury. 911 was called. Victim was transported to hospital by ambulance. Life jackets were being worn and alcohol was not a factor.