360° panorama by William l.
Click the image to open the interactive version.

A view inside Harvestmen Cave, a single-passage lava tube that is roughly 2,600 feet in length.  It is remarkably well-preserved with minimal breakdown & has easy walking with 7-30 foot high ceilings, though averaging about 10 feet.  The width of the cave is narrower at about 10 feet on average.  The cave has a couple of skylight openings, including one towards the lower end just around the corner from this long passageway.  In the other direction, the cave takes a right turn & lowers its ceiling about 100 feet to an abrupt lava seal.

https://www.360cities.net/image/harv1