I finally came back to the rest of the video I took with my GoPro Hero3 while mountain biking a few weeks back and edited down the footage from the BMX Loop at Walnut Creek Park. While this trail has a couple of technical spots, it also has super fast sections where you get to go over small ramps and zoom around switch backs. Towards the end of the mountain biking trail is where you find the BMX park. On the day that I took this video, there were some people out doing maintenance on the BMX ramps. Whenever I come across people riding their BMX bikes in the park area, I like to stop and observe them for a while. It looks super fun!
Once again, I need to learn how to make these videos less grainy, although this one does appear slightly better than the previous two. I think it looks best if you go to YouTube to watch it, rather than watching it in the embedded size.
Previous videos: First try at making a video