2018 limited schedule:
425 Prewitts Knob Road, Cave City, Kentucky under the cell towers.
Crystal Onyx Cave is known for its beautiful cave decorations.
Here is some more unclassified information, and a picture gallery.
Here is your chance to write us some kind words about our spectacular cave.
The limestone formations started as an inland sea 350 million years ago.
They have spent the past five years rehabilitating and modernizing the cave.
It was big news in 1960 when Cleon Turner discovered and uncovered the cave.
Discover how the Knob was named and what happened during the Civil War .
In our Gift shop we have snacks, mineral
specimens and interesting collectibles.
Open from 11 a.m. to the last tour at 8 pm. Come and visit us!
Crystal Onyx Cave * 425 Prewitt’s Knob Road, Cave City, KY 42127 * (270)773-3377