A worthwhile water toy For the price this sub is a good value. It travels a decent distance when wound fully, and it does indeed rise and submerge. My three year old daughter cracked off one of the fins, but she's a bit hard on toys. My six year old son who loves subs had a lot of fun with it. We used it mostly in the bathtub, but it would be fine in a pool. I would not use it in a lake, since it would be too easy to lose in cloudy water. For the price it was a good toy.