. . Crystal Onyx Cave . . . We're Not Mammoth, but we are Spectacular

Know Before You Visit:

2018 limited schedule:

  • 425 Prewitts Knob Road, Cave City, KY 42127
  • Open daily through Labor Day.
  • Open 11 am to the last tour at 8 pm central time.
  • Special grand reopening price for 2018: $13 children’s rate per person will apply to adults also. Children 4 and under free.
  • Credit cards accepted with a 3% fee.
  • After Labor Day check our web site for current tour day’s & times.
  • You may also contact us for an exclusive tour or group tours year round, different rates apply. 
  • Tours are on a first come first served basis and limited to 12 people. They are about 1 hour (1/2 mile long) and are moderately strenuous with steps and grades.
  • Wear sturdy shoes and clothes that can get a little damp and dirty.  
  • Leave backpacks, purses and food in your cars. Non-flash pictures are encouraged.
  • No restroom facilities, not handicap accessible. 
  • We are family owned and operated with a laid back approach and unscripted tours. 
  • Saturdays are the busiest, weekdays are at a slower pace.

Getting to the Cave

425 Prewitts Knob Road, Cave City, Kentucky under the cell towers.

Inside the Cave

Crystal Onyx Cave is known for its beautiful cave decorations.

Our Picture Gallery

Here is some more unclassified information, and a picture gallery.

Tell Us How We Did

Here is your chance to write us some kind words about our spectacular cave.

Geology of the Cave

The limestone formations started as an inland sea 350 million years ago.

About Scott and Sara

They have spent the past five years rehabilitating and modernizing the cave.

Newspaper Articles

It was big news in 1960 when Cleon Turner discovered and uncovered the cave.

The Area History

Discover how the Knob was named and what happened during the Civil War .

Gift and Mineral Shop

In our Gift shop we have snacks, mineral specimens and interesting collectibles.

Now Open Daily

One of the most beautiful caves in Kentucky!

Open from 11 a.m. to the last tour at 8 pm.  Come and visit us!

Site Visits Since November 2017

Crystal Onyx Cave * 425 Prewitts Knob Road, Cave City, KY 42127 * (270)773-3377