Ruby Falls is a dramatic natural attraction hidden deep within Lookout Mountain near Chattanooga.

Reached through a cave system carved by water over millions of years, the falls plunge more than 145 feet underground, making it one of the tallest and deepest underground waterfalls open to the public in the United States.

Illuminated against ancient rock formations, Ruby Falls combines geological history with a sense of discovery, offering a rare view into the hidden landscapes beneath the Appalachian region.