I was watching a TV show on discovery I think it was and the idea behind it was to search for the lost city of Atlantis and some missing world war 2 planes..
They basically took a camera and ran it on the ocean floor pretty much and eventually once it was all done they simulated draining the ocean. Interesting thing is they didn't find Atlantis but they found a whole lot of missing planes and ships and boats.
Wonder if that's possible to do with this one. Seems like it might work but I believe the Indian Ocean is way deeper so might be tough. Was interesting. Wish I could remember the name of the show... Draining the Atlantic or something similar. Was super cool.