Choosing a good guided tour is key to having a memorable experience in volcanic cave exploration. Pay attention to aspects ...

Sandwiched between the freezing cold of Earth’s coldest continent and the warmth of its southernmost active volcano, the ...

This ice cave was one stemming from the tongue of a glacier flowing from Mount Erebus, one of the most powerful volcanoes of ...

We returned to Petty John’s Cave with a mission—to reach the Volcano Room, a massive underground chamber shaped like its namesake. The journey took us through tight, claustrophobic crawls, slippery ...

The cave that the Kanohina system seems poised to supplant in the record books is on the other side of the Big Island. It was likely created during a 15th-century eruption of a different volcano ...

With high carbon dioxide, low oxygen and no photosynthesis, here’s how an entire ecosystem persists in Movile Cave, one of the most extreme environments on Earth.

Cueva de los Verdes and Jameos del Agua located inside the volcanic tunnel, are natural caves that are open to visitors and natural caves that were formed following the eruption of the Corona Volcano.

Volcanoes can look like small mountains or hills. A volcano is an opening in the Earth's crust that allows magma, hot ash and gases to escape. Composite volcanoes are the most common type of volcano.