Here are a couple of pictures that were taken while we were at the Lazy Moose Cabin in Mount Chase, Maine earlier this summer.
The twins enjoyed running up and down the little hill behind the cabin.
Theodore likes to hold sticks or bats or whatever it might be over his head while he runs. Jacqueline is running just for the mechanics of it.
Theodore answers to a boss somewhere who always has him checking things out, seeing how they work, or disassembling in order to reassemble.