Personally i wouldnt bother with that one, it was an action cam with very low resolution although it was waterproof to 3 metres, ideally you need a wireless 2.4ghz camera (480-520 tv lines) with either a cluster of bright white led,s or infa red led,s. Fit the camera in a clear waterproof enclosure and extend the aerial so it sits on a ping pong ball or similar on the surface of the water.
Russ