I never thought aerial hobby drones were that interesting, but that sounds fascinating, as you'd be looking around in an environment seldom experienced otherwise.
I've wanted to do this and get an Oculus in the mix as well!
dude, imagine battle bots...but underwater with Oculus VR.
After reading this[1] xkcd post about the ROV he built, I've wanted to try and build a similar one when my son is old enough. Then after seeing the Oculus + drone video I wanted to add that in as well and go "diving" in Puget Sound