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 ...