Thurston Lava Tube

This picture was taken inside the Thurston Lava Tube, which is southeast of the Kilauea Caldera. Lava Tubes are formed when a lava flow is deep enough for a crust to form over it. This lava tube is extinct; no lava flows through it now. Wikipedia (http://en.wikipedia.org/wiki/Lava_tube) has a good article on lava tubes if you want to learn more about them.

Going through the lava tube requires walking down a rather steep uneven path and coming back up a number of steps. However, it is not a difficult walk. Anyone who can walk unassisted should be able to handle it. You just may need to take your time. Be sure you have a pair of shoes with good traction.