The world’s largest subterranean cave can be found in the Quang Binh province in Vietnam. It is believed to have been created some two to four million years ago, when the Rao Thuong River carved out limestone deposits found underneath a ring of mountains. Measuring at 300 feet wide, 800 feet high and runs 2.5 […]

Spelunking is yet to catch on in Southeast Asia, not when the sun, sand, sea and surf provide stiff competition. This is not to say that there are no serious spelunkers descending to dark depths on this side of the planet, nor is there a shortage of caves to explore. Maybe it is the fact […]