Fotoen an den 7 Enneralbummen
The images shown are closeups of part of a lagoon in an atoll not far from Japan and looking through the water from above and seeing the seabed. The seabed looks like it's covered with rocks but what you are actually seeing is the remains of shipwrecks that have deteriorated and spilled their cargo onto the sea floor. The next image is the enhanced version of this image where I try to get more visual detail. An interesting sidenote is there are two large ships anchored just next to the atoll while in the lagoon there is a lot of activity with platforms, boats and several divers scouring the bottom for artifacts.