The logomites or popcorn stalagmites this explorer sits near are hollow and sometimes grow taller than a person.
Immerse yourself in one of the longest caves in the world. With over 220 miles of mapped and surveyed passages, this underground wilderness appeals to human curiosity. Its splendor is revealed through fragile formations and glimpses of brilliant color. Its maze of passages lures explorers, and its scientific wealth remains a mystery. This resource is truly a jewel in the National Park Service.
Jewel Cave National Monument will begin its summer operations May 25 with daily tours and extended hours. Reservations are recommended for all cave tours on Recreation.gov.
Jewel Cave National Monument will celebrate National Park Week with several activities on Saturday, April 19. These activities include a bird count, fee-free cave tours, and a “Discovery Hour” presentation.
Jewel Cave National Monument will cease cave tours Monday, March 24 to Friday, March 28, 2025, due to a planned emergency generator installation. On Tuesday, March 25, 2025, the visitor center will not have power and will be closed.