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  Tien Son Cave

 

Vietnam

The Tien Son Cave in Phong Nha-Ke Bang National Park near Dong Hoi, located in one of the world's two largest karst regions, with around 300 caves and grottoes, also home to Hang Son Doong, i.e. the ‘Mountain River Cave’, as well as to Hang Thien Duong, i.e. Paradise Cave’.

 

With a height of 200 meters and a width of 150, Hang Son Doong is believed to be the world's largest known cave passage cross-section, twice the size of that of Malaysia's Deer Cave, whilst Hang Thien Duong, with a length of 31 km and discovered in 2005 by scientists of the British Caving Research Association, is the longest dry cave in the world.

 

  Tien Son Cave

 

  Tien Son Cave

 

The 980 meter long Tien Son Cave is located at an altitude of ca. 200 meter, up the cliff from Phong Nha Cave (fig.) and is accessible by a stairway that starts from the Son River (fig.) below.

See also THAILAND'S NEIGHBOURS and BEYOND, as well as TRAVEL PHOTOS.