Located in the province of Quang Binh in Vietnam, the cave called Son Doong, which means cave of a mountain river, it is the largest cave in the world. The biggest part reaches 200 meters in height and 150 meters in width. It extends about 5.5 kilometers. It is said that some of the space is so massive that they can fit into the city with all its streets.
The cave of the mountain river in a very remote jungle of the National Park Phong Nha-Ke Bang, near the border with Laos. Discovered in 2009 by a group of British cavers. But because of the predicament to get access to it failed. Login was flooded. After several years of research restored. Although the road was quite difficult - 6 hours on foot through the jungle, scientists were able to examine it from the inside.
Son Doong is one of 150 caves in the area. It received its name from the fact that education was created millions of years ago, during the washout limestone waters of the river. From the constant erosion of the cave collapsed, forming passages.
In the cave there are several rooms, each of which also got its name. For example, there is a "Pearl Room" - it has been found cave pearls, composed of calcite, gypsum, pieces of stalactites, limestone. Or 'Edam Garden "- a huge room with an opening in which grown trees and vines.
The team of photographers for National Geographic magazine has made a unique series of photographs, which invites you to enjoy and you.