Mammoth Cave National Park
The longest known cave system on Earth
Mammoth Cave protects the longest cave system known anywhere — over 400 mapped miles of passages beneath the Kentucky hills, explored on ranger-led tours. Cool underground year-round; the surface is nicest spring and fall.
What to see
The top things to see in Mammoth Cave are Historic Tour, Frozen Niagara, Domes & Dripstones Tour, Green River. Start with a ranger-led cave tour if you only have one anchor, then use the rest of the list to shape a half-day or full-day route.
- Historic Tour
- Frozen Niagara
- Domes & Dripstones Tour
- Green River
- Surface hiking trails
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Things to do near Mammoth Cave National Park
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