Centuries of eruptions on the Big Island have created hidden networks of passages beneath volcanoes. In December 2016 a large lava delta formed by Kilauea volcano sank into the sea, exposing the ...

Possibly stopping there as they traveled between oases and pastures, they ducked into vast subterranean tunnels where molten lava had once ... in the form of rock art, lithic artefacts, stone ...

Lava tubes are caves left behind by underground lava flows ... ‘Within the lava tube are artefacts, rock art, and skeletal ...

Prior to the Lava Caves biome of the Fields of Mistria mines, the only pieces of equipment we’d really need to use were the pickaxe and sword. Once you get into this region after breaking the ...

Approximately 700,000 years ago when molten rock erupted from a vent in nearby Hart Prairie, the mile-long Lava River Cave was formed. Today, visitors can explore the cave's cool, dark expanse by ...

The Canary Islands not only boast the third largest volcano in the world, but also the largest natural underwater lava tunnel ... and a blend of dry and submerged cave sections.