Atlas Obscura Itineraries

The Endless Wonders of Mammoth Cave National Park

With more than 400 miles of explored passageways, Kentucky’s Mammoth Cave is the longest known cave system on the planet. It’s a world of layered limestone, remarkable stalagmites and stalactites, dark underground tunnels, vast open chambers, and thousands of years of human history. Together with 52,830 acres of forests and rivers, Mammoth Cave became a national park in 1941. The caves were designated as an UNESCO World Heritage Site in 1981, and in 1990, an International Biosphere Reserve. Simply put, the park and its surrounds are remarkable, beckoning visitors with an array of adventures ranging from offbeat to sublime. Whether it’s careening down an alpine slide or crawling your way through low-lying stretches on a six-hour subterranean tour, here are 10 ways to experience this wondrous place in all its mouth-gaping glory. So grab a paddle (or a kerosene lantern), hop on a bike or book a stay in a wigwam and get ready to explore.