Lehman Caves is Nevada's longest cave system, and tours have been running continuously since 1885. Ranger guides explain speleothems, cave geology, and history as you walk established routes through formations like the Gothic Palace and Parachute Shield. Tours range from 30 minutes (first chamber) to 90 minutes (full Grand Palace route), so you can match the experience to fitness level and attention span. Expect to climb stairs, duck under low passages, and feel moderately cool; bring layers and close-toed shoes.

More things to do in Great Basin National Park

Picnic at Pole CanyonDriving the ParkAstronomy Ranger Program