
Since then he has worked for the French subsea company Comex, as a photographic technician in the North Sea oilfields and on the administrative staff of a small independent oil company in Indonesia. He was the head of the photographic department, and a crew member with the Johnson Sea Link I submersible, at the Harbor Branch Foundation in Florida. He has done archaeological work in the Mediterranean and dived on wharf inspection and maintenance contracts. In 1973, he was a subject in two 1,000ft chamber dives at the Duke University Medical Center in North Carolina.