Sơn Đoòng cave (Hang Sơn Đoòng)

Hang Sơn Đoòng

Sơn Đoòng cave (Vietnamese: hang Sơn Đoòng, IPA: [haːŋ˧ ʂəːn˧ ɗɔ̤ŋ˨˩]),

in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam

 

Location : Quảng Bình Province, Vietnam

Discovery

The entrance to Hang Sơn Đoòng was found in 1991 by a local man named Hồ Khanh, while searching for agarwood, a valuable timber. Although he initially went to investigate further, he was discouraged upon approach by the sound of rushing water and the strong wind issuing from the entrance. Not thinking it to be of any great importance, by the time he returned to his home, he had forgotten the exact location of the entrance.  Later, he mentioned his discovery in passing to two members of the British Cave Research Association (BCRA), who were exploring in the local area. They asked him to attempt to rediscover the entrance, which he eventually managed to do in 2008, and in 2009, he led an expedition from the BCRA to the entrance.

 

This expedition, conducted between April 10 and 14, 2009, performed a survey of the cave and gave its volume as 38,500,000 m3 (1.36×109 cu ft).  Their progress in exploring the cave's full length was stopped by a large, 60-metre (200 ft) high  flowstone-coated wall, which the expedition named the Great Wall of Vietnam.  The expedition returned in March 2010 and successfully traversed the wall, which allowed the explorers to reach the end of the cave passage. They estimated that the overall length of the cave system exceeded 9 km (5.6 mi).

 

Sơn Đoòng cave doline

 

 

항손둥 동굴 (hang son doong cave) 구조영상

항손둥 동굴 (hang son doong cave) 구조도

 

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Fantastic Hang Son Doong Cave 

베트남의  항손둥(Hang son Doong)

https://www.youtube.com/watch?v=drw36jz3THQ

 

 

 

베트남 항손둥(Hang Son Doong) 동굴 

https://www.youtube.com/watch?v=RoFsZwW8mTs

 

500만년만에 발견된 지구 속 또다른 세계

 

 

Sơn Đoòng cave (Vietnamese: hang Sơn Đoòng, IPA: [haːŋ˧ ʂəːn˧ ɗɔ̤ŋ˨˩]), in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam, is the world's largest natural cave.

 

Located near the Laos–Vietnam border, Hang Sơn Đoòng has an internal, fast-flowing subterranean river and the largest cross-section of any cave, worldwide, believed to be twice that of the next-largest passage. It is the largest known cave passage in the world by volume.

 

Its name, Hang Sơn Đoòng, is translated from Vietnamese as "cave of the mountain behind Đoòng". Đoòng is the name of a Vân Kiều village.

 

As a solutional cave, it was formed in soluble limestone  and is believed to be between 2 and 5 million years old.

 

 

 

 

 

 

 

 

 

Another view out the mouth of the cavern, showing the rainforest in its doline

Reflecting pool further inside

Large stalagmites in the passage of Hang Sơn Đoòng in Vietnam:

The tallest has been measured at 70 m (230 ft) in height.

 

Large stalagmites in Hang Sơn Đoòng:

This passage is said to have the greatest cross-sectional area of any cave in the world.

 

The massive second doline in Hang Sơn Đoòng is so large that trees grow inside.