Winter Park expanded its Trestle Bike Park in 2010 with eight new runs and new features all over the mountain, adding both a "Green World" novice area and insane new terrain worthy of pro events like Crankworx Colorado. For starters, try the Trestle 101 progressive lesson and guide program. If you haven't upgraded your helmet and other body armor (or your health insurance coverage) recently, the Trestle Bike Park is the perfect excuse: Prepare to eat dirt.