HCM CITY — British explorers on Monday announced the discovery of 15 caves in the central province of Quang Binh in what they called is the most impressive feat ever in the history of cave exploration. The team found three of them in Minh Hoa District and 12 in Ke Bang canyon following a month of exploration.
The shortest is 200m long while the longest is 4km.
Some have pure jade stones measuring up to a world record-d 20cm across.
Caves allow geologists and geomorphologists an insight into the Earth's structure and formation. — VNS