About Ruby Falls
Ruby Falls is one of Chattanooga's most iconic attractions, located deep inside Lookout Mountain and home to the tallest and deepest underground waterfall open to the public in the United States. The 145-foot waterfall sits more than 1,120 feet beneath the mountain's surface, accessed through a dramatic limestone cavern trail that winds past stunning geological formations. Since opening in 1930, Ruby Falls has drawn millions of visitors and remains one of the top-rated attractions in the Tennessee Valley.
Beyond the underground waterfall tour, Ruby Falls has expanded into an outdoor adventure destination with a zipline course, high ropes challenge course, and a children's climbing area set on the mountainside with panoramic views of the Chattanooga valley. The ZIPStream Aerial Adventure features multiple zipline runs and sky bridges strung between towers on the mountain, while the Lookout Mountain Tower provides a 360-degree observation deck. Combination tickets bundle the cave tour with outdoor adventure activities at a discount.
Ruby Falls stands out for the sheer uniqueness of its underground waterfall — there is simply nothing else like it in the region. The cave tour is guided and educational, covering the geology and history of the cavern system. For families visiting Chattanooga, it's a must-do experience that pairs naturally with other Lookout Mountain attractions like Rock City and the Incline Railway, all within minutes of each other.
