Riding a unicycle on mountain biking trails.
Unicycling is great and all, but isn’t it just a little too easy? You can barely turn your head without seeing someone who scoffs at bicycles in favor of going everywhere on a single wheel. Such would seem to be the logic behind mountain unicycling. The name is in no way misleading; it’s a sport in which riders climb and descend hilly trails on their unicycles.
Click here for the link and a pretty interesting video.
I wonder if they’ve tried using 29er wheels yet?