Sơn Đoòng Cave (Vietnamese: Hang Sơn Đoòng) ‘cave of the mountain river’, or ‘mountain cave of Đoòng [village]’ in Vietnamese, is a solutional cave in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam.
The cave was created 2 – 5 million years ago by river water eroding limestone underneath a mountain
Take an otherworldly journey through Hang Son Doong, the world’s largest cave, by both ground and air.
Do you dare enter the largest cave in the world?
Geplaatst door PlayGround + op maandag 26 juni 2017
As of 2009 it has the largest known cave passage cross-section in the world, and is located near the Laos–Vietnam border. Inside is a large, fast-flowing subterranean river. It was formed in Carboniferous/Permian limestone.
First discovered in 1991 by a local farmer, who then forgot where it was, and confirmed as largest by cavers in 2009.
Hang Sơn Đoòng was found by a local man named Hồ Khanh in 1991. The whistling sound of wind and roar of a rushing stream in the cave heard through the entrance as well as the steep descent prevented the local people from entering the cave. Only in 2009 did the cave become internationally known after a group of cavers from the British Cave Research Association conducted a survey in Phong Nha-Kẻ Bàng from 10 to 14 April 2009.
Their progress was stopped by a large, 60-metre (200 ft) high calcite wall, which was named the Great Wall of Vietnam. It was traversed in 2010 when the group reached the end of the cave passage.
Hard to find: The approach to the Son Doong Cave in Vietnam involves a treacherous 36-hour journey through dense jungle
In early August 2013, the first tourist group explored the cave on a guided tour at a cost of US$3,000 each. Permits are required to access the cave and are made available on a limited basis, with 800 permits available for the 2017 season, which runs from February to August. After August, heavy rains cause river levels to rise and make the cave largely inaccessible.
Do you dare enter the largest cave in the world?
Filmed near the entrance and the first and second dolines (skylights) which are 2.5 and 3.5 km inside the cave respectively. Watch the film below:
Source: Wiki/Dailymail/NG.