If you haven't been in several years, go!
By A Yahoo! Contributor, 7/21/10
We visited Ruby Falls in June 2010, previously it had been about 15 years. It is much nicer, you can now hear the guide with a PA system, and the trail to get to the falls is better, with some formations named and is well lit, plus now they have ZipStream Aerial Adventure. It still remains in Top 7 Natural Attraction in the U.S.