Son Doong – The biggest Known Cave in the World

Son Doong – The biggest Known Cave in the World
September 11, 2013

Wikipedia:
Sơn Đoòng cave (“Mountain River cave” in Vietnamese) is a cave in Phong Nha-Kẻ Bàng National Park, Vietnam. Currently the biggest known cave in the world. It has a large fast-flowing underground river inside.
Sơn Đoòng Cave was found by a local man named Hồ-Khanh in 1991. The local men were afraid of the cave for the whistling sound it makes from the underground river. It was not until 2009 that it became public after a group of British scientists from the British Cave Research Association, led by Howard and Deb Limbert, conducted a survey in Phong Nha-Kẻ Bàng from April 10 through April 14, 2009. Their progress was stopped by a large calcite wall.

The biggest chamber of Sơn Đoòng is more than five kilometers long, 200 meters high, and 150 meters wide. With these dimensions, Sơn Đoòng overtakes Deer Cave in Malaysia to take the title of the world’s largest cave. An exit from the cave was found in 2010. The group that scaled the 200 meter high wall found cave pearls the size of baseballs, an abnormally large size.

In early August 2013, the first tourist group explored this cave in a guided tour, costing $3000 each. The group had six members and spent 7 days and 6 nights for the tour.