Current NPS alerts (2)
Cave Tour Reservations
Advance cave tour reservations up until October 31st are available. November reservations will become available on October 1st. Reservations are strongly recommended. Reservations full? Choose a day to come to the park early in the day to purchase a same day cave tour ticket.
Appropriate Footwear Required for Cave Tours
Visitors are required to wear completely enclosed shoes if participating in a cave tour, like tennis shoes, sneakers or hiking boots. Any type of sandals or shoes with any openings are NOT acceptable.
Weather alerts (National Weather Service)
No active NWS watches, warnings or advisories for the forecast zone and county at the park's central point.
About this site
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.
- Type
- National Monument
- State
- South Dakota
- Address
- 11149 U.S. Hwy. 16, Building B12, Custer, SD 57730