A team of divers has discovered that the largest cave in the world is even bigger than anybody previously thought. During a dive last month, a British team discovered an underwater tunnel ...

The world has many cave systems, but none are as absolutely massive as this one in Vietnam, which is so big it boasts its own ...

Scientists have discovered the world’s largest known subterranean fish in a cave in northeastern India.

Exploring the world’s largest cave Vietnam's Son Doong cave, which is over 5.5 miles long and could fit a 40-story skyscraper inside its walls, was first explored by British cavers in 2009. Now ...

THE world’s largest cave transports you back to a time long before humans ever existed with its own underground weather system, mysterious river and rain forest. Hang Son Doong in Vietnam is … ...

Highlights of the five-night trip include seeing the cave’s own rainforest and a calcite wall called the Great Wall of Vietnam. Vietnam is home to the world's largest cave. It's so vast that it ...

The Narusawa Ice Cave is a natural lava tunnel that formed during a violent eruption of Mount Fuji in A.D. 864. Every winter, ...

A Vietnamese resort company has been granted approval to begin surveys to build a 10.6 kilometer long cable car in the world’s largest cave, the UNESCO-listed Son Doong in north-central Quang ...

Explorers on a 2010 expedition have now measured the biggest cave passage in the world in a remote Vietnam jungle. EarthSky spoke with Darryl Granger, a Purdue University geologist and caver who ...

A massive, unexplored cave in British Columbia could be the largest in Canada. Researchers surveyed the enormous cave in September.

The world's largest cave passage — a half-mile block of 40-story buildings could fit within it — was discovered deep within a remote Vietnamese jungle last year.