The Huron County Sheriff's Department says a man was seriously injured after diving into shallow water.
Deputies found David Haight of Cass City in the water near a sand dune in the Port Crescent State Park.
People were trying to keep his head above water.
Rescuers say the man hit his head on the bottom when he dove in around 5:00 Saturday night and could not move after the accident.
An ambulance took him to Huron Medical Center and he was later airlifted to another hospital.