This was an idea we had found on Pinterest. Verdict: eh. We tried with six kids, ages 15 months, 16 months, 2 years, 4 years and two 5 year olds. It kept them entertained for about 20 minutes, much of which was playing with the hose. I'm not sure it was any better than general water play. It would probably work better with something sturdier -- any little bump in the ground pushed the foil up and kept the boats and toys from floating. Maybe I'll try pool noodles cut in half later this summer.