Hotels in Mammoth Cave National Park, United States of America

Mammoth Cave National Park in Kentucky is home to the world's longest known cave system, with over 400 miles of mapped passages. The climate brings hot summers (highs around 86°F/30°C) perfect for hiking and canoeing on the Green River, while cold winters (lows near 23°F/-5°C) mean fewer crowds and a chance to explore the cave's constant 54°F/12°C temperature. You can tour historic sections used by Native Americans and for saltpeter mining during the War of 1812, making any season a good time to visit.