RedactedNarrative: operator was drifting on his kayak on Lower Sherando Lake in Augusta County VA. Operator was reaching for his fishing pole that was located in the rod holder when he capsized the kayak that he was in and fell overboard. Operator was wearing the required life jacket and was able to hold onto the kayak and call for help. subject was in a canoe with his son and able to respond to Operator's call for help. Subject towed Operator and the Kayak to shore. Operator advised he was very cold so we provided sweaters and jackets to try and keep him warm. Once the ambulance arrived Operator was given blankets and his clothes were removed to dry in a nearby national forest service building. Capt. of Wintergreen Rescue advised Operator that he may have water in his lungs and that he should go to the hospital(Augusta Health) to have it checked out.  Operator was transported to Augusta Health in the Wintergreen ambulance for medical treatment.