Abod Abdeen got a great deal on his airplane seat! It cost him nothing, he had nobody sitting next to him, and the whole trip was pretty quick. There was just one downside — the plane was on the bottom of the ocean. Don't worry! It didn't crash or anything like that. As part of an effort to create a new coral reef, the airplane was intentionally sunk underwater. So instead of an annoying child kicking the back of your seat, you may get an angry octopus.