As the world’s only underground zip line, Louisville’s Mega Cavern is a must visit for all the adventure lovers. There are several main attractions including the Mega Tram, Mega Quest, and Mega Zips. The Mega Tram includes an underground SUV-pulled tram tour with information about the geology and history of the cavern. There is also a special showing of the worm recycling and tasting room as well as a replica of the Cuban Missile Fallout Bunker. The Mega Quest is the only fully underground aerial ropes challenge course in the world and is one of just 20 in the world! The Cavern was built in the 1930s and remains today a hotspot for fun and adventure. For more information, visit: https://louisvillemegacavern.com/.