
KY
Mammoth Cave National Park
The world's longest cave system with underground passages, hiking trails, and river valleys.







Mammoth Cave National Park protects the world's longest known cave system, carved through rolling Kentucky hills and deep river valleys. Underground passages, historic human artifacts spanning thousands of years, and diverse cave-adapted wildlife make this a UNESCO World Heritage Site and International Biosphere Reserve.
The park offers cave tours, backcountry hiking, and river access across multiple zones and entry points throughout the property.
Visitors explore both the famous underground passages and the surface landscape of forests and waterways. No permit is required to visit, making it accessible for day trips and longer stays.
No locations are linked to Mammoth Cave National Park yet.
Common Questions
What visitors most often want to know about Mammoth Cave National Park.
Do I need a permit to visit Mammoth Cave National Park?
No permit is required to visit Mammoth Cave National Park. You can enter the park freely during operating hours.
What makes Mammoth Cave National Park notable?
Mammoth Cave National Park is home to the world's longest known cave system. The park is also designated as a UNESCO World Heritage Site and International Biosphere Region.
What kind of landscape and wildlife will I see at Mammoth Cave?
The park features rolling hills and deep river valleys with a rich diversity of plant and animal life. The landscape and ecosystems reflect thousands of years of human history in the region.
How can Open Canyon help me plan a trip to Mammoth Cave National Park?
Open Canyon monitors Recreation.gov availability for Mammoth Cave National Park facilities and accommodations. You can set up alerts to be notified when availability opens up for your preferred dates.