Just down Lookout Mountain from Rock City is Ruby Falls. It is a 145-foot waterfall which is 1,120 feet underground. Ruby Falls is the largest underground waterfall in America.
You have to take an elevator down 260 feet to get you to the Ruby Falls Cave. After this, you walk a half-mile and stop and look at various stalactites before you see the waterfall. Once you get to Ruby Falls, you are in pitch darkness. Then all of sudden, there is an illumination of the falls. You will see various colors like ruby and plum blue highlighting the Falls and a reflecting pool. It is a spectacular view because of this, and it funnels 300 gallons of water per minute into a subterranean river.
In addition to the geological formations, the caverns, and the Falls, this place has a 10-story observation tower and Ruby Falls Fun Forest for children. Along with this, it can be considered a historical site as well. A section (off-limits to vistors) of another cave below Ruby Falls was supposedly utilized as a Confederate hospital, and another relic is Andrew Jackson’s signature etched into a rock down there.
Many believe that the name for the Falls, Ruby, was given to it because of the color ruby that illuminates it. This is not so. Instead, the man that discovered it, Leo Lambert, named the Falls after his wife Rube. Therefore, the Falls was named "Ruby Falls".
We really enjoyed this tour. We were fortunate because we only had about 15 people in our group. The caverns, the geological formations and Ruby Falls were all intriguing to view. The only thing that was annoying was that we were told by our guide to "hug" the sides of the caves so another group could get out.
The best advice I can give you for this tour is come right when it is opens or go just before it closes. In this way, you have a smaller tour group. This in turn will provide you longer time to view all the natural wonders. In addition, from what I was told by other tourists, the guides prefer smaller groups and thus will be in better spirits giving it.
The directions to Ruby Falls from downtown Chattanooga is as follows: Take Broad Street south and remain on it. You will go through several traffic lights. Then you proceed to the Railroad underpass. Then Broad Street becomes Highway 41. You then continue on Hwy 41 about 0.25 – 0.5 mile and you take the ramp on the left side of the Hwy labeled Ruby Falls.
A Ruby Falls ticket for adults is $12.95, and for kids, 3-12 is $5.95. But if you purchase a combo (includes both Ruby Falls and Rock City), an adult ticket is $24, and a child 3-12 is $12. And if you purchase a combo that includes Ruby Falls, Rock City, and the Incline Railway, an adult’s ticket is $33, and a child's ticket is $16.50.