Jewel Cave National Monument will be closed Thursday, November 27, 2025, for Thanksgiving. Don't worry though, the Visitor Center will open back up on Friday, November 28th at 8:30 a.m. for our regular business hours. Cave tour tickets are available ahead of time on Recreation.gov or can be purchased first-come, first-serve on the day of your visit. If you plan to purchase tickets the day of, make sure to be an early bird and arrive early to ensure the most availability! NPS Video/ C. Longenecke

Jewel Cave National Monument 📍 Custer, SD Get ready to explore the 2nd longest cave in the US, boasting over 200 miles of passages. Guided tours ensure you won’t get lost, while teaching you about the stunning calcite crystals on the walls, ceilings, and floors. Book your tickets in advance, as they sell out fast. Don’t forget to bundle up for the cool temps and be ready to climb those stairs. Extend your adventure by earning your junior ranger badge and checking out the main cave entrance. | B

Jewel Cave National Monument | The Black Hills and Badlands — South Dakota

The second-longest cave in the U.S., Jewel Cave National Monument, can be found here. Take your best guess below! #statefunfacts #BNSF #freight | BNSF Railway

Treasures of the Darkness