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| Son Doong Cave |
Khanh says that the newly-discovered caves are located in remote areas and they are named Gio (wind), Con Chay, Ky and Hai Cua (two doors).
According to Khanh, these caves are untouched and have many beautiful stalactites. British scientists are measuring the length of these caves.
The complex of caves in Phong Nha-Ke Bang holds many records: the area with the largest system of caves, the area with the highest number of underground rivers, and having the largest and longest dry cave.
The most famous cave in Phong Nha-Ke Bang is Son Doong. The cave was found by a Ho Khanh, a local man in 1991. However, not until 2009 was it made known to the public when a group of British scientists from the British Cave Research Association, led by Dr. Howard Limbert, conducted a survey in Phong Nha-Ke Bang from April 10-14, 2009. Their progress was stopped by a large calcite wall. According to Limbert, this cave is five times larger than the Phong Nha cave, previously considered the biggest cave in Vietnam. The biggest chamber of Son Doong is over five kilometers in length, 200 meters high and 150 meters wide. With these dimensions, Son Doong overtakes Deer Cave in Malaysia to take the title of the world's largest cave.
The cave has been known worldwide after a report and pictures of British scientists’ exploration were published on the National Geographic journal in late 2010.
Source: Vietnamnet