About the Son Doong Cave – a unique wonder of the Cave Kingdom
The world’s largest cave, Son Doong, sits majestically in the Phong Nha – Ke Bang National Park, which is one of the best places in Vietnam and also one of the top natural world heritage sites in the world. The jaw-dropping size of Son Doong leaves explorers awestruck and makes them feel like they’ve entered an extraterrestrial world under the surface of the Earth. One of the top reasons to visit Vietnam is a chance to explore this cave by joining the adventure of a lifetime – Son Doong Expedition. Oxalis Adventure – a professional adventure operator in Vietnam which is based in the Phong Nha – Ke Bang National Park as well and is the only qualified (in safety and conservation) official tour operator in the world allowed to conduct expeditions to Son Doong.
This cave is almost 3 million years old and is the ultimate cave experience for adventure and exploration enthusiasts worldwide! It’s not just a cave, but a different and unique underground environment. Son Doong is so huge and has its own jungle, river and even its own climate! It was officially explored in 2009-2010 by the British Cave Research Association (BCRA).
One of the things that put Son Doong at the summit of the top caves to visit in the world is its enormous size; at almost 6km long, with sections reaching up to 200m tall and 150m wide, Son Doong Cave is large enough to house an entire New York City block, complete with 40 story skyscrapers. With a total measured volume of 38.5 million cubic meters, this comfortably surpasses Deer Cave in Malaysia, which was considered to be the previous record holder. After having established an official connection with Hang Thung, another 1.6 million cubic meters of volume would be added to it; this means that Son Doong would enhance its position of the largest cave in the world and continue to prove that it still keeps its mysterious charm alive and remains a secret.