Location:
Geographically, the Phong Nha-Ke Bang National Park (PNKBNP) is located in central Vietnam, about 500km south of the capital, Hanoi, within the Quang Binh Province.
The western boundary of the Park partially forms Laos-Vietnamese border, which is only 42km from the sea. The Park is found within the geographical co-ordinates of 170 20'-170 48' N and 1050 46-1060 24' E in Bo Trach and Minh Hoa Districts.
Information
Phong Nha - Ke Bang National Park contains a complex karst area dating from the Palaeozoic era, which makes it the oldest in Asia. The site has high geodiversity and many geomorphic features such as underground rivers, dry caves and sub-aerial stromatolites. This makes it of very great importance for increasing the understanding of the geologic, geomorphic and geo-chronological history of the region.
The site consists of two parts: Phong Nha Nature Reserve and Ke Bang forest. The area is noted for its Phong Nha and Vom cave systems. They are composed of 300 caves and grottos with a total length of about 126 km, of which only partly have been surveyed. The cave system has one of the world's longest underground rivers. Some 92% of the park is covered by tropical forest, 92.2% of which is primary forest.
Looking into the caves, you may recognize discrete episodic sequences of events, leaving behind various levels of fossil passages, formerly buried and now uncovered palaeokarst (karst from previous, perhaps very ancient, periods of solution); evidence of major changes in the routes of underground rivers; changes in the solutional regime; deposition and later re-solution of giant speleothems and unusual features such as sub-aerial stromatolites. The location and form of the caves suggest that they might owe much of their size and morphology to some as yet undetermined implications of the schists and granites which overlay the limestone. On the surface, there is a striking series of landscapes, ranging from deeply dissected ranges and plateaux to an immense polje. There is evidence of at least one period of hydrothermal activity in the evolution of this ancient mature karst system. The plateau is probably one of the finest and most distinctive examples of a complex karst landform in SE Asia.
The Phong Nha cave itself which lends its name to the whole system is probably the most beautiful of all, containing many fascinating rock formations, enchanting visitors with evocative names such as Lion, Fairy Caves, Royal Court and Buddha.
Besides the grotto and cave systems, Phong Nha has the longest underground rivers, the largest caverns and passageways, the widest and prettiest sand banks, and the most astonishing rock formations in the world.
According to initial statistics, the primitive tropical forest in Phong Nha-Ke Bang houses 140 families, 427 branches, and 751 species of high-rated plants, of which 36 species are endangered and listed in the Viet Nam Red Book. The forest is also home to 32 sets, 98 families, 256 races and 381 spec
ies of four land backboned animals. Sixty-six animal species are listed in the Viet Nam Red Book and 23 other species in the World Red Book. In general, Phong Nha-Ke Bang's animals are more diverse than in other natural reserves and national parks.
Phong Nha-Ke Bang also boasts dozens of mountain peaks of over 1,000 metres still unexplored by men and seen as ideal sites for activities like climbing and exploration. Worthy of note are Peak Co Rilata with the height of 1,128 m and Peak Co Preu, 1,213 m. Lying between these peaks are valleys which promise tourists exciting eco-tours.
In addition to the diversity in the ecosystem, Phong Nha-Ke Bang is home to archeological and historical relics, such as an ancient hieroglyphic script of the Cham ethnic minority, King Ham Nghi's base built for the resistance war against French colonialists in the late 19th century, and the Xuan Son ferry station, Ho Chi Minh Trail and Road 20 used during the US resistance war.
Central Quang Binh province has poured heavy investment into upgrading the Phong Nha-Ke Bang visitor site to turn it into the country's major tourist destination.
