Cargo hold #1 of the San Francisco Maru, sunk in February 1944 in Truk Lagoon, Federated States of Micronesia, is loaded with mines. The mines are at about 185 feet, so I had the camera and lights prepositioned and ready to start shooting as soon as I got into the hold. This is one of half dozen frames. Next stop was the tanks on the main deck at about 165', then slowly back to the surface doing staged safety stops along the way.