A few days ago I was underwater at Cod Hole, an underwater gathering place for a lot of large potato cod off the northeast corner of Australia. Watching the cod gather around some divers, I felt a "clang" on my tank and thought another diver had run into me. A second later it became evident it wasn't another diver, it was this very large and very old loggerhead turtle. Chuck Guthrie saw the "bump" and clicked this picture.