Bring the experiences of remote control cars you had as a kid to a whole new level. Especially if you are one of those who love to explore, but may not feel like getting your feet wet just yet. Send in an underwater remote controlled submersible down to film your underwater endeavors.
They even have versions that turn your GoPro into a submarine!
http://www.popsci.com/new-remote-control-submarine-turns-gopro-aquanaut
