Have a wonderful adventure in scenic and historic Harper's Ferry, WV, with two, two-hour passes to an adventure park climb at Aerial Adventure Park. The eight trail challenge course that makes up the Adventure Park covers four beautiful wooded acres above River Riders' main base. Courses are rated on a scale similar to a ski resort. The courses are labeled green through black with green being the easiest and black the most difficult. There is also a yellow course for younger guests. Each trail has approximately 12 challenge elements and zip lines to challenge yourself on!