Pitch Black - Pitch Perfect
Wisconsin's darkest trail tunnel makes the Badger State Trail a favorite destination in Green County. Approaching the tunnel on a hot day is like standing in front of the refrigerator with the door open. Except your mom won't be yelling at you to stop wasting energy. Thre're also a great echo effect - so feel free to harmonize with yourself, or try out a yodeling duet. Bring a flashlight or bike lamp to explore the tunnel. As you round the curve near the midway point it's gonna be pitch black.