Journey deep inside historic Lookout Mountain to see the tallest and deepest underground cave waterfall open to the public in the United States! Descend 260 feet by glass-front elevator to see ancient cave formations along the cavern trail to the thundering waterfall.

Breathtaking Ruby Falls was accidentally discovered by Leo Lambert in 1928 deep within Lookout Mountain in Chattanooga, Tennessee. Leo named the waterfall and cave after his wife, Ruby, and opened the iconic Chattanooga attraction to the public in 1929. Today, Ruby Falls welcomes guests to Lookout Mountain from around the world to enjoy underground cave adventures, spectacular views of the Cumberland Plateau, and soaring zip lines.