I just came back from a trip and had started some recordings while I was going down a lazy river. It appears that it did not record while on the river. But when I got out of the river, it did record me walking. I have looked at some instructions and am assuming that I was going to slow down the river for it to detect I was moving and record the track. But I didn't find anyplace that says what to do to keep it from happening again. Any suggestions?