Warrior Dash
Somewhat on a whim I decided to accept the offer some friends made me to run the Warrior Dash with them. Before this I hadn't even heard of obstacle course racing, and it had been years since I'd last run much of any distance, but it sounded like fun. It turned out that the Warrior Dash is pretty tame for an obstacle race (I had a much harder time on the running than the actual obstacles) but it was still a great time to be with friends, get a little muddy, and get some much needed exercise.
Here's a relatively short timelapse I took with a gopro camera to give you a sense of the course (and my own lack of athleticism):
http://marktroutt.com/videos/mov/Warrior_Dash_First_Pass.mov