Now that you've chosen a perfect shaded area for a digging spot , and provided fun sand for him to dig in, you've probably discovered that sandy, shady areas are fertile breeding grounds for fleas. You can buy DE at Home Depot or any pool supply company. Mixing small amounts into the sand makes it a very uncomfortable place for fleas to live. Be aware, though, that DE can be harmful to your lungs if you breathe the dust. So mix in small amounts, and do it on a non-windy day.
Dogs are intelligent, compassionate, fun-loving creatures.
They deserve to have a mentally and physically stimulating life. They deserve to be loved and included in a family structure. And they deserve to have fun.