This is kind of related but the National Geographic special "Drain the Ocean" is a great watch. http://channel.nationalgeographic.com/episode/drain-the-ocean-3

This is kind of related but the National Geographic special "Drain the Ocean" is a great watch. http://channel.nationalgeographic.com/episode/drain-the-ocean-3639/Overview http://channel.nationalgeographic.com/episode/drain-the-ocea...