It turns out that the hills around our house are quite perfect for mountain biking. Many evenings we go over to the park and ride the trails there, but if we only have a few minutes for a little break, the boys just make their own trails in our yard (simultaneously making more gray hairs on my head).
They love to go zooming down from the top of the driveway, down past the side of our house, and on over the little creek bed in the woods, to the "Deep Woods." They often fall, but so far no major catastrophes.
Tough little Rayna is doing her best to keep up with them... though Common Sense whispers a little loudly in her ear than in theirs so she doesn't do everything they do.