The man found the underworld!

In 1991, roamed the Vietnamese National Park Phong Nha-Kẻ Bàng National Park local resident came across the entrance to a huge cave. On the way to her man I was stunned wafting out ominous sounds.

As soon as possible after leaving from the mysterious crevices, Vietnamese relatives told about the discovery. Since humans first learned about the cave Sơn Đoòng Cave. Scientists got there soon. Only in 2009 to Vietnam reached puzzles British cavers. Having surveyed the cave, the experts were delighted.

Dimensions Sơn Đoòng Cave surpassed all initial calculations. Mysterious cave was so great that it was a place with its own jungle ecosystem. The noise startled locals, published the current by Sơn Đoòng Cave underground river.

After the necessary measurements, the scientists named Sơn Đoòng Cave of the largest caves in the world. 200 meters high, 150 meters wide and more than five kilometers in length - wow scale!

However, the cause of fame Sơn Đoòng Cave are not only affecting the size of the imagination. People who visited her, say that this cave is not only the biggest but also the most beautiful on the planet!