Underground Ruby Falls by AVG2319
Travel down a short elevator ride into an underground cave,past caverns and rock formations - at the end of the tour you will see a 145 foot waterfall. It is the highest underground waterfall around. They have different colored lights flashing towards the water when you get there, so it looks pretty cool. The passage walkways are narrow, so no strollers. I found it a little chilly in there, so I would suggest wearing a long sleeve shirt or a light jacket. Ruby Falls are located on the historic Lookout Mountain in Chattanooga, Tennessee. You have a great view of the city from up here too.