A recent muni up on some mountainbike trails in Saratoga, NY was spectacular. These members-only trails are probably the best around as they include miles and miles of great single track with a real wilderness feel. We got a tour from 2 members on bikes who were continuously in awe of even our mediocre muni skills.
So in awe, in fact, that the Filmer of this video flipped over the handlebars with the camera running (towards the end)
QuickTime is evil. There was a where I refused to install it because it was a constant series of critical security holes. It has gotten better, but still has issues and you still need to keep up with security updates for it.