Just for the fun of it, I registered for an ultramarathon coming up in two weeks:
The Red Mountain 50k (about 31 miles).
A few other friends, Darin and Logan decided to register just for the fun of it too. The first 12 miles are on trails/dirt roads and the last 19 miles are on the road. I think it will be a blast. I will be sure to bring along my camera. And a copy of my life insurance policy.