The caverns lie more than 750 feet under the visitor center. There are elevators, but some visitors opt to walk the trail down from the natural entrance. We took the elevator. One of the younger elevator riders said that he had tried the walking descent twice but turned back each time because of his fear of heights.
Also there is no way photos can impart of feeling induced by the scale of the objects.
Many of the stalagmites and stalagtites were as much as 6 stories high!
The caverns used to have a snack bar in caverns at the elevator. The facility is limited nowadays to coffee and soft drinks while a full service cafeteria is on the surface as a part of the visitor center.
We spent about 4-5 hours at the park, enjoying a picnic lunch before returning to Brantley Lake.