A tunnel now connects two natural caves allowing a round trip through these fossil, dry, well-decorated systems. The cave is only open for tours on weekends, during the summer. Turn north on State Highway 25. From the north, follow Highway 25 south from Hollister. Two small caves have been formed where boulders roof narrow canyons.
Natural light is sufficient to navigate along stairs and narrow trails.
Near the intersection of State Highways 89 and 44 at Old Station, on Forest Service property. Follow Highway 89 one-half mile north of information center. This meandering lava tube is left in its natural state a truly wild caving experience. Bring a light and look out for many interesting features typical of volcanic caves. Open all year, as weather permits.