National Monument & Preserve · OR
Information · Major road construction on Hwy 199
Travelers using Highway 199 between Crescent City and Cave Junction should expect multiple traffic delays beginning as early as May due to ongoing Caltrans construction. For the most current delay and closure information—including upcoming four‑hour full closures—please check the Caltrans District 1 Road Information Bulletin for updates and follow their social media channels.
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Deep within the Siskiyou Mountains are dark, twisting passages that await your discovery. Eons of acidic water seeping into marble rock created and decorated the wondrous “Marble Halls of Oregon.” Join a tour, get a taste of what caving is all about, and explore a mountain from the inside and out!
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Cave tours are available Thursdays through Mondays from 10:00 am to 4:00 pm. Closed Tuesdays and Wednesdays. Reservations are available on recreation.gov for advanced tickets sales. Same day ticket sales will also be available at both visitor centers, but plan to arrive early to secure your spot. Please call our Illinois Valley Visitor Center at 541-592-5125 if you have any questions.
Offered Thursday through Monday, 10 AM to 4 PM. Duration: 90 minutes. Difficulty: Moderately strenuous. Tickets are $20 for adults, $15 for youth (15 and under, must be at least 42 inches tall), $10 for America the Beautiful Senior Pass holders (ages 62 and over; discount applies to the cardholder only) and America the Beautiful Access Pass holders (discount applies to the cardholder only), and $7.50 for youths with an America the Beautiful Access Pass.
This 60-minute guided tour offers a unique experience, illuminating the cave’s features by candlelight. The tour is moderately strenuous, and participants must be 10 years or older to join. Tickets are $20 for adults, $15 for youth (ages 10 to 15), $10 for America the Beautiful Senior Pass holders (ages 62 and over; discount applies to the cardholder only) and America the Beautiful Access Pass holders (discount applies to the cardholder only), and $7.50 for youths with an America the Beautiful Access Pass.
Designed for families with children. Duration: 90 minutes. Difficulty: moderately strenuous. At least one child must be in the group, and all children must be over 42 inches tall. Tickets are $20 for adults, $15 for youth (ages 15 and under), $10 for America the Beautiful Senior Pass holders (ages 62 and over; discount applies to the cardholder only) and America the Beautiful Access Pass holders (discount applies to the cardholder only), and $7.50 for youths with an America the Beautiful Access Pass.
Cave tours are available daily in the summer through the fall of 2026. Guided tours are offered 10:00 AM – 4:00 PM. Reservations for tours will be available at www.recreation.gov. Same day, first come, first served tickets are also available at both park visitor centers.
Cave tours will be available from 10:00 am to 4:00 pm daily through Sunday, November 1, 2026. Please call our Illinois Valley Visitor Center at 541-592-5125 if you have any questions. Closed in the winter.
Hours are retrieved from the National Park Service and can change without notice — check the official site before you go.
Times are in the park’s local time. Golden hour is the sun within 6° above the horizon; blue hour, within 6° below.
Source: National Weather Service.