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Sơn Đoòng Cave. Vietnam

The largest cave in the world is located in Central Vietnam, in the province of Quang Binh, in Phong Nha-Kẻ Bàng National Park and is called Sơn Đoòng Cave. It has its own rivers, jungle and clouds – 9 km long, 200 metres high and 150 metres wide, the total area of the cave is 38.5 million cubic meters. It is noteworthy that such a huge cave wasn’t known to people for millions of years. The locals discovered it in 1991. In April 2009, it was found by a group of British speleologists under the leadership of Howard Limbert. This team of cavers discovered the cave due to the wind, which makes it possible to find cavities in rocks. After 4 days of the detailed inspection, the researchers reported that you can fly by plane and hot air balloon in this cave!



The cave also has its own flora – grass and trees grow in some areas of the cave, which catch light through the gaps of the vaulting. You can see a real jungle here with different inhabitants. There are insects, rodents, snakes, birds and even monkeys. The cave has its lake and an underground river that floods some parts of the cave during the rainy season with a similar name Hang Son Doong. The cave has its own rain clouds and mystical fog; this is due to a large temperature difference. There is always a certain noise in the cave from the underground river, which continues its work on the washing out the rocks.


This is a huge amazing underground world! Since 2009, the attention to the cave has become enormous. The next expeditions discovered new passages to a chain of underground labyrinths. The number of curious tourists was increasing every day! Tourists pay $ 3,000 to come here, arrange boat trips and set up the whole camps deep in the cave. And this is worth it, there is really something incredible to see. In order to get here, you need to go underground on the ropes to a depth of 80 meters.




Before the discovery of this cave, Deer Cave in Malaysia was considered as the largest cave in the world; Sơn Đoòng Cave is 5 times bigger. The cave is rich in bizarre rock formations, varied pattern on the walls, the feeling of another world. Stalagmites have a height up to 70 meters here. These incredible rocks and everything around were created within 2-5 million years. Here are also strange cave pearls, which can be found in small cells of limestone – small spherical cave formations formed by calcium salts in concentric layers. Curiously, these cave pearls of unnaturally large size; they are almost as big as baseballs. They are highly valued, because are extremely rare.


World's Biggest Cave

1 comment

  • Bien Thuy

    Before, it’s easy to visit Sơn Đoòng Cave, but since it was promote on television, it’s so hard. I’m from Vietnam, go to Son Doong Cave sometimes but since it promoted, no way to go there. 🙁

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