Not sure why it took until the last hot day of "summer" to figure this one out!
Even though we've lived in our current home for 4 summers, I think we've used our in-ground sprinkler system once!
But for some reason, on one of the hot days last week, while we were out working on the yard this idea came to us! Really, how easy could it be! And the boys loved it.
I think this will be a more regular activity next year!