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Entrance
Free
No permit needed
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⭐ Highlights
→Historic Tour — 2 hours through main passages
→Wild Cave Tour — crawling through undeveloped cave
→Green River — 25 miles flatwater paddling
→70°F year-round cave temperature
⚠ Before you go
!Book cave tours in advance — sell out quickly
!White-nose syndrome — follow decontamination protocols
!Some tours extremely strenuous
When to visit
Mammoth Cave by Season
Spring (Mar–May)
Wildflowers. River full.
Summer (Jun–Aug)
Busiest. Book tours early.
Fall (Sep–Nov)
Best surface hiking.
Winter (Dec–Feb)
Quiet. Cave tours still run.