The boys asked if they could dig holes in our backyard. They want to link them together with underground tunnels. We said yes since 1/3 of our backyard is dirt.
This has been their entertainment for about three hours each day... until they are too tired to dig anymore. Andrew had this big rock to deal with today.
Frustrated, he kept at it until he was able to remove it.
Kind of reminds me of a certain movie.