The Big Island is, well, BIG. She has many secrets; especially below ground. She has beaches, mountains, jungles, deserts, plains, forests, and massive escarpments. You could look for years and not find a fraction of what Big Island has hidden, above and below ground. Here is some of the magesty of the south side. Lava tubes are extensive, running dozens of miles from Kiluea to Kalapana. An experienced guide is recommended. Lava shelfs at the ocean's edge are prone to collaps so staying well back from the edge is a safety imperative. these areas are wild and exceptionally beautiful. They are not for the faint of heart.