The Mega Underground Bike Park in Louisville, Kentucky is the only underground bike park and also the largest indoor bike park in the world. Over 45 trails, jump lines, pump tracks, dual slalom, BMX, cross country and single track are extended on 320,000 square feet (29,729 square meters) in a former limestone cavern 100 feet sub-surface.
Mega Underground Bike Park is designed with all skill levels in mind. Single track which surrounds the entire bike park is easy enough for less experienced riders, although you can veer off to more difficult trails if you chose.
Bike rentals are now available.