The Fairgrounds Tour is 1½ hours in length and explores both the upper and middle levels of Wind Cave. Boxwork is abundant along the trail in the middle level of the cave. In the upper level, the trail winds through the larger rooms where popcorn and frostwork can be seen. This is the most strenuous walking tour at Wind Cave. The tour enters and exits the cave by elevator and there are 450 stairs along the ½-mile route with one flight of 89 steps going up.