I found one still attached to an extender rod, I too thought it would be a can down about a foot. The last video shows him filming a girl in the surf and a big wave comes and then just video of it tumbling around in the ocean. Its a nice one, it has wifi and sends real-time video to your phone.
Found it a few months ago and played with if for a couple days and now its just sits around. More of a novelty, not much into taking videos. Probably sell it.