1.Son Doong Cave is a natural cave in Tan Trach Commune, Bo Trach District, Quang Binh Province, Vietnam
2.Son Doong Cave is part of an underground system connecting more than 150 other caves in Vietnam near the border with Laos
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Son Doong cave was formed about 2-5 million years ago, when river water flowed through the limestone area was buried along a fault line. The water erodes and creates a giant tunnel in the ground below the mountains. In soft rock places, the ceiling collapsed to form holes, long time to form huge arches.
The cave has a width of 150 meters, a height of over 200 meters and a length of up to nearly 9 kilometers. It is estimated that the capacity of Hang Son Doong is 38.5 million cubic meters (equivalent to 15,000 Olympic swimming pools).
With such dimensions, Son Doong cave has passed Deer Cave in Gunung Mulu National Park of Malaysia (with a of 100 m, width of 90 m, length of 2 km) to occupy the position as the largest natural cave in the world .In addition, in some sections of Son Doong cave, there are large sizes up to 140 m x 140 m, including stalactite columns up to 14 m high. A splendid photo taken by photographer Carsten Peter in May 2010 recorded a cave with a width of about 91.44 m, a cave arch of nearly 243.84 m high - can accommodate a 40-storey building. [14]
In the cave, researchers also found an underground river 2.5 km long and stalactite columns up to 70 m high. The cave has populations of coral and fossils. The cave has two "skylights", two places where the ceiling collapses, shines in the sun, creating conditions for trees to grow a tropical forest in a cave, a place in which is called "Adam's garden". .
4.We can get there by many vehicle
5.The New York Times ranked Son Doong cave as the 8th place among 52 places on the list of places to visit in 2014
6.A discovery tour for visitors was held in early August 2013, costing US $ 3,000 per guest. The first group consisted of 6 people from the United States, Russia, Australia and Norway. They spent 7 days and 6 nights exploring the Doong cave. Approximately 100 guests registered for the next tour when the discovery tour was opened [16]. The mysterious beauty of the cave has attracted many tourists, helping the development of Vietnam's tourism industry.
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