Son Doong cave was discovered by a local person 18 years ago, is over 200 meters wide, 150 meters high, and at least 6.5 km long, although the explorers travel to Vietnam and say that they can't explore it absolutely. Bristish explorers have recently discovered that So Dong is much bigger than the world’s biggest known cave. The largest part of Son Dong is 5 kilometers in length, 200 meters high and 150 meters wide, said Howard Limbirt of the British Cave Research Association team looking for the area April 10-14, 2009. Son Dong is larger than Deer drop Malaysia, currently thought of the world’s largest, an explorer said (Deer is 90 meters wide, 100 meters high and 2 kilometers long). The Son Doong cave has replaced to require pole position as the world’s largest cave.

The Son Dong is situated below another cave in Phong Nha-Ke Bang, though its entry passage is very difficult to traverse. The exploration team said they had set foot on just 6.5 kilometers along the cave, as there is a large amount of fast flowing water inside Son Dong. It takes explorers six hours of walking through a 10 kilometer long forest path from Truong Son Highway to reach the mouth of Son Dong cave. The explorer added that the Quang Binh cave has beautiful stalactites and stalagmites that are not seen anywhere else.

Phong Nha-Ke Bang grotto system belongs to the Phong Nha-Ke Bang National Park. It is a limestone region of 2,000 square kilometers in Vietnam and borders another limestone area in Hin Nammo in Laos. When describing the newly-discovered cave, the team’s spokesman, Haward Limbirt, said that it was a thing of overwhelming beauty and grandeur. He added that each grotto has its own beauty, but he is impressed by Ca Xai. This cave is near the Vietnam-Laos border. It is very deep and has a big lake inside. Explorers measured the depth of this lake, but they had only 200m of rope and the end didn’t reach the lake bed.

The British team suggested the local authorities that they should develop Son Doong Cave the same as a tourism site immediately to preserve its natural beauty.

Source:vietnam-beauty