Lights Under Louisville, located in the Louisville Mega Cavern, is a magical drive-through holiday light show situated 100 feet below ground. "Because we are underground we're dark all the time ...

One of the city's more unique attractions, the 100-acre Louisville Mega Cavern ... an aerial ropes course and a tram tour for those interested in a more relaxed cavern experience.

Inside the cavern are a variety of natural pools, waterfalls, and formations that you can explore while on a guided tram ride. The caves are naturally formed by water erosion through the limestone ...