Mammoth Cave National Park
Mammoth Cave, KY, 54°F inside, from $15
A small cave in Cave City, Kentucky with quick 30-minute tours at around 60°F.
Onyx Cave was found in 1971 during the construction of a parking lot for a larger attraction. It opened as a show cave for the public in 1973. The cave was developed and managed by Cleon Turner, who also developed and managed nearby Crystal Onyx Cave. The first owners were Dan Broady, Ford Smith, TJ Adams, and Otis Edwards, who also owned Guntown Mountain. Dan Broady subsequently bought out the other owners to become sole owner.
History source: onyxcave.com.
93 Huckleberry Knob Road, Cave City, Kentucky 42127
Distances are straight-line from each city center.
30 minutes
About 60°F year-round.
Not handicap accessible.
Well behaved dogs are allowed in the rock shop. Registered service animals are welcome in the cave. Other well behaved dogs are allowed in the cave only if contained inside a bag or pack for the entire tour.
Walk-ins only; no reservations. Tours run roughly every 30 minutes.
1971, according to the cave's own history.
93 Huckleberry Knob Road, Cave City, Kentucky 42127
Checked on 2026-10-22 against onyxcave.com (official site). Prices and hours change, so confirm on the official site before you drive out.
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