Dirt Bath's for all!

I have a gravel area around the shed. The girls like to scratch around in it. Today it was sunny and the girls decided that it was bath time. I crept around the shed and found them. They had torn up the weed block so they can get to the dirt. How did they did so deep so fast?

It is just us here having a dirt bath in the cool soil!

We are working on the tunnel under the fence soon!