Phong Nha - Ke Bang is a national park in the center of Quang Binh province in north-central Vietnam. It protects one of the world's two largest karst regions with several hundred caves and grottoes. Its name derives from Phong Nha cave, the most beautiful one, with numerous fascinating rock formations, and Ke Bang forest. The plateau is probably one of the finest and most distinctive examples of a complex karst landform in Southeast Asia.
Phong Nha-Ke Bang National Park was first nominated as a UNESCO World Heritage Site in 1998. The dossier submited to UNESCO was for the recognition of Phong Nha nature reserve as a world natural heritage under the name “Phong Nha Nature Reserve”. The reason given for the nomination was that this nature reserve satisfied the criteria of biodiversity, unique beauty and geodiversity (criteria I and iv).
It was recognized as a world natural heritage site at the UNESCO's 27th general assembly session being held in Paris in June 30th – July 5th, 2003. At the session, delegates from over 160 member countries of UNESCO World Heritage Convention agreed to include Phong Nha-Ke Bang park and 30 others worldwide in the list of world heritage sites. Phong Nha-Ke Bang National Park meets with criteria viiii in accordance with UNESCO’s appraisal scale since it displays an impressive amount of evidence of earth’s history and is a site of importance for increasing human understanding of the geologic, geomorphic and geo-chronological history of the region.
Phong Nha-Ke Bang National Park is of high conservation value as one of the largest areas of intact forest habitat remaining in Vietnam. As part of a continuous forest block with the neighbouring Him Namno Biodiversity Conservation Area in Laos it forms one of the largest areas of forest on limestone karst in Indochina. The presence of tall lowland forest, which is regionally threatened as a habitat type, in the National Park increases the area's conservation value.
( from www.vietnam-beauty.com)