Yes, there are specific times set aside daily to reserve in advance on a 90-day window. The cave also offers tours on a first come first serve basis, although it is recommended that guests arrive early in the morning in order to secure a tour. Currently Due to COVID-19, the visitor center and park store at Jewel Cave National Monument are closed until further notice. However, the surface trails are open daily from 8:30 a.m. to 4:30 p.m. MDT. Please be advised that the main gate will close promptly at 4:30 p.m.; hikers and park users should be plan their departure time accordingly.