Specialty:
"Ruby Falls is the nation's highest and largest underground waterfall accessible to the general public. The breathtaking falls were discovered by Leo Lambert in 1928. Ruby Falls is celebrating the National Day of Caves and Karst on June 6. Today, Ruby Falls receives more than half a million visitors per year around the world. Visitors can explore the ZIPStream Aerial Adventure, featuring a 700-foot zip line and a 40-foot treetop climbing tower surrounded by breathtaking views. Tennessee has over 10,000 known caves, more than any other state. Caves& karst are rich in natural resources, including the most productive groundwater on earth with 175-different minerals, some of which are found only in caves.
2026 Update: Ruby Falls is a wonderful underground cascading waterfall with a 145-foot (44 m) drop inside Lookout Mountain."








