01
Historic Entrance
Varies by tourSteep descent
This is the natural main entrance to the cave. Early explorers used this passage thousands of years ago. Expect a steep descent and an immediate drop in temperature to 54°F (12°C) as you enter.
Explore
Cave Tours and Underground Sights
Mammoth Cave contains over 426 miles of mapped subterranean passages.
Entry to the surface park is free, but you need paid tickets for guided cave tours. The underground temperature stays at a constant 54°F (12°C) year-round. Bring a light jacket and sturdy, closed-toe shoes. Packing Guide
Tours involve navigating stairs, uneven terrain, and dim lighting. Large backpacks, tripods, and flash photography are prohibited inside the cave.
02
Domes and Dripstones
2 hoursSells out fast
This highly popular tour showcases dramatic vertical shafts. You will also see beautiful stalactite and stalagmite formations. Book weeks in advance for summer visits because this route frequently sells out. Historic vs Domes
03
Frozen Niagara
1.25 hoursLess strenuous
This heavily decorated section features massive flowstone formations. It is a shorter, less strenuous introduction to the cave's geology. This route is ideal for families and visitors seeking an easier walk. Family Visits
04
River Styx
2.5 hoursPeak season only
This route takes you to an underground level to see subterranean waterways. The lowest known cave elevation is 412 feet (126 meters) near Echo River. This tour is usually only available during the peak summer season.
