Mammoth Cave National Park
Kentucky
Free entry
Rolling hills, deep river valleys, and the world's longest known cave system. Mammoth Cave National Park is home to thousands of years of human history and a rich diversity of plant and animal life, earning it the title of UNESCO World Heritage Site and International Biosphere Region.
Topics
No entrance fee.
Hours
Mammoth Cave National Park is open 24-hours a day, although services such as cave tours and the visitor center are limited after-hours. There is no gate at the park entrance. Please note that camping is only possible either in designated campgrounds or backcountry campsites with a valid reservation or permit.
Conditions
Weather now: ⛅ Partly cloudy, 79°F
⛈️ 83°/68°
☁️ 79°/64°
☁️ 81°/61°
Things to do
Cave Tours
Become a Mammoth Cave Junior Ranger
Explore Wildflowers at Cedar Sink
Viewing Park Wildlife
Attend a Ranger-led Program
Houchin Ferry to Brownsville
Nolin River Dam to Houchin Ferry
Green River Ferry to Houchin Ferry
Visitor centers
Mammoth Cave Visitor Center
Not an official safety source — always defer to NPS.gov and rangers for life-safety decisions.
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