Aaron on his run bike!

I took Aaron to a pump track today. It's a park designed for bmx and this one includes some trials-riding obstacles.  As I recall, it was also the first time he rode his bike off pavement (other than the rocks and grass along our driveway), so it was quite exciting for him.  We had it to ourselves for the most part and Aaron was quite enthralled.  I had my phone with me, so here is some video of him on the bumps. Enjoy.

Edit: I tried to fix a couple of the videos and add one of Aaron riding a "skinny."