dryfj.com / drycyclist.com (kevin cook)

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04522-lava-tube.jpg Here's the low section that you have to crawl under to get in and out of the main room at the Lava TubeThumbnailsThe Lava Tube was a fun visit; I climb back up the ladder and walk down the trail to the road where I left the 10-ton bikeHere's the low section that you have to crawl under to get in and out of the main room at the Lava TubeThumbnailsThe Lava Tube was a fun visit; I climb back up the ladder and walk down the trail to the road where I left the 10-ton bikeHere's the low section that you have to crawl under to get in and out of the main room at the Lava TubeThumbnailsThe Lava Tube was a fun visit; I climb back up the ladder and walk down the trail to the road where I left the 10-ton bikeHere's the low section that you have to crawl under to get in and out of the main room at the Lava TubeThumbnailsThe Lava Tube was a fun visit; I climb back up the ladder and walk down the trail to the road where I left the 10-ton bikeHere's the low section that you have to crawl under to get in and out of the main room at the Lava TubeThumbnailsThe Lava Tube was a fun visit; I climb back up the ladder and walk down the trail to the road where I left the 10-ton bike

It's not as claustrophobic as it looks because you can see the light on the floor just beyond the wall. If it were a tunnel instead of a wide low-ceiling opening, it would be a bit more challenging.