Rode with a few friends at the Strawberry Fields Forever ride in Santa Cruz/Watsonville almost a year ago. There were so many unicycles...they were on the 65mi and 100mi routes! It was crazy! No gearing, fixed gear and huge wheels.
There were some good climbs too! Amazing!
Here is some video we took while riding...look at the unicycle guy we pass...
http://www.youtube.com/watch?v=BIJb5VtUdWA

We are looking forward to riding it again in a few weeks!