The Nereus has already been down there unmanned: http://en.wikipedia.org/wiki/Nereus_(underwater_vehicle) http://en.wikipedia.org/wiki/Nereus_(underwater_vehicl

The Nereus has already been down there unmanned: http://en.wikipedia.org/wiki/Nereus_(underwater_vehicle) http://en.wikipedia.org/wiki/Nereus_(underwater_vehicle) If you are wondering what it saw there are some videos here: http://www.whoi.edu/page.do?pid=33775 http://www.whoi.edu/page.do?pid=33775