Kohler, along with John Chatterton, identified and researched the German World War II submarine U-869 which resulted in one of the most watched documentaries on public television. Kalahari extended their discount package, which includes four tickets to its water park. Tickets are still available for the 34th annual Shipwreck Symposium sponsored by the local dive club, Bay Area Divers.
Kohler and Chatterton continued their undersea explorations by appearing in 57 episodes of “Deep Sea Detectives” on the History Channel. One such expedition led them to Lake Huron where they documented a shipwreck with the assistance of a local Bellevue teacher, the late
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