Emergency responders from Winter Park Fire-Rescue and other agencies were searching for a lost boater Monday night on Lake Osceola, according to the department’s Facebook post. The agency reported a call came in at 7:25 p.m. for a lost 20 or 21-year-old male boater, prompting the search. He was in the water, but the other occupants of the boat did not see him resurface, according to Lieutenant .