As parts of the lava tube erode and crack over time, invading tree roots siphon moisture that collects, and forests thrive on the surface above. By contrast, lava caves, widely known as lava tubes ...

The two are linked as some of the best caves are, in fact, a lava tube, which is a natural tunnel formed by flowing lava moving underneath the hardened surface of a lava flow. Tubes act as a ...

Lava River Cave is chilly and slippery even in the summer. Recent visitors were awe-struck by the experience of hiking a tube cave. Although some experienced difficulty accessing the roads – in ...