James Michael Kling was 17 when he disappeared from Glen Canyon National Recreation Area, Utah, on July 8, 1984. He was on vacation with family and was last seen about 3:30 p.m. walking along the dock at Dangling Rope Marina to go back to the rented houseboat for a t-shirt. He was wearing red swimming trunks and no shirt.

Soon after his last sighting, one of his flip-flops was found floating near the boat and the other was recovered farther out in the lake that evening. Divers and rescue teams mounted an extensive search but found no trace of James. Authorities have noted his history of epilepsy and say a seizure leading to an accidental fall into the lake is a possible explanation, but no body or physical evidence has been recovered, and the case remains classified as a missing person.

Anyone who was at Dangling Rope Marina or Glen Canyon on July 8, 1984, or who has information about James’ disappearance is asked to contact the investigating agency.