It is almost inevitable that kids will dig. I have whole-heartedly embraced the fact that will get dirty.He has explored all the corners of our back-yard, only to enjoy the absolute ugliest part, the bare patch behind the dog-house, close to the foundation. The dogs will dig small holes (ahem!) next to the foundation and lay in it when it is really hot out. Because the foundation and the bottom layer of dirt is cooler, it helps them when they are outside for any length of time in July & August. I certainly don't like this part of dog-reasoning, as we've tried to have shrubs back there, and it just looks bad.