Built by BUMP (Birmingham Urban Mountain Pedalers), the Double Oak Trail system is located inside Oak Mountain State Park. Most of the trails on this loop are single track, with a few miles of double track with varied difficulty ratings throughout. Listed as an “Epic Ride” by IMBA (International Mountain Bike Association), making that list as one of the top 52 trails in the world. This trail can be ridden in either direction, and split up into shorter loops if desired. Entrance fees are $3 for adults, children ages 6-11 and Seniors are $1.