Phong Nha Ke Bang

The Phong Nha Nature Reserve is situated on the edge of the Phong Nha - Ke Bang Karst plateau in central Viet Nam. It is only part of the total plateau, which extends to and adjoins the Hin Namno karst of the Lao PDR. Phong Nha contains many large and spectacular caves.
Phong Nha Ke Bang is a natural beautiful landscape that the Creator has bestowed on Quang Binh province in particular and on Vietnam in general, a piece of land associated with the heroic feats of the history.
 
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Here, the harmonic combination of primitive forests, Son River, and caves creating a watercolor painting that captivates numerous people. Phong Nha Ke Bang was organized as a Natural World Heritage by UNESCO in 2003.
 
The karst landscape is an extremely complex and ancient one, with high geodiversity and some geomorphic features of considerable significance. It has an Earth crust development history from the Ordovician period (464 million years ago).
 
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The Phong Nha Nature Reserve is situated on the edge of the Phong Nha/Ke Bang Karst plateau in central Viet Nam. It is only part of the total plateau, which extends to and adjoins the Hin Namno karst of the Lao PDR...

Situated in Quang Binh, a central province of Vietnam, Phong Nha – Ke Bang National Park is one of the most remarkable yet underrated destinations in Vietnam, or even in Southeast Asia. 
 
Outstanding topography

The limestones of Phong Nha are interbedded with a number of other rocks. There is also strong evidence that sulphurous solution and hydrothermal action have played an important role in shaping the broad-scale landscape and the caves. The incorporation of the Ke Bang forest into the park has added another very important dimension.

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The karst formation process has resulted in many features such as underground rivers, dry caves, terraced caves, suspended caves, dendritic caves and intersecting caves. The active river caves are divided into the nine caves of the Phong Nha system discharging to the Son River, and the eight caves of the Vom system discharging to the Chay River.

The Phong Nha - Ke Bang karst has evolved since the Palaeozoic era and so is the oldest major karst area in Asia. It has been subject to massive tectonic changes. The karst landscape of the park is extremely complex with high geodiversity and many geomorphic features of considerable significance.

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This sector has many ‘fossil’ caves at a high level, which occur when the groundwater and rivers move to a lower level.

Only a very few have been visited to date. It is one of the most important eco-regions of the Indo-Pacific. A large number of faunal and floral species occurs in the park, including some endemic to the site.

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This has produced three types of topography and geomorphology. One type is the non-karst land forms, which consist of low, round-top mountains with planation surfaces and abrasion-accumulation terraces along the valleys of the Son and Chay rivers and at the margins of the central limestone massif.

The other major type is karst land forms, which are characterized by old tropical karst mainly from the Mezozoic era, but two-thirds of the site consists of karst from the Cenozoic.

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Extensive transitional land forms comprise an extremely complex intercalation of limestone massifs and terrigenous terrain with a diversity of rock types.

The limestone occupies an area of about 200,000 ha, with a similar adjacent area in the Lao People’s Democratic Republic and its highest point is 1,290 m above sea level.

Cave systems

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Phong Nha - Ke Bang National Park dubbed the "Kingdom of the cave" is home to more than 300 spectacular multi-shaped caves. It still hides numerous attractive mysteries and is worth a paradise for cave scientists, explorers and tourists.

With a currently surveyed length of 44.5 km. Its entrance is the last part of an underground river that connects with the Son River and tour boats can penetrate inside to a distance of 1,500 m. Other extensive caves include the Vom cave at 15 km in length and the Hang Khe Rhy cave with a length of 18,902 m.

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So far, more than 170 caves with total length of hundreds of kilometers have been surveyed systematically and thoroughly. Phong Nha - Ke Bang National Park was valuated as one of the most beautiful sights with characteristics as follows:

The cave with the longest underground river, the highest and widest entrance, the most beautiful sandbank and reef, the most beautiful underground lake, the widest and most beautiful dry cave, the most spectacular stalactites, and the longest water grotto.

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Among caves, Phong Nha Cave is truly outstanding by the survey length of nearly 8km, mainly with underground rivers. In addition, Vom (Arch) Cave with the total length of more than 15 km is listed as the cave with the longest underground rivers in the world.

Phong Nha Cave

Some 92% of the park is covered by tropical forest, 92.2% of which is primary forest. By far the largest vegetation type is tropical dense moist evergreen forest on limestone.

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Although this was severely damaged by fire during the war, it is recovering rapidly and is now in a healthy state. It has a high level of faunal diversity and there are many vascular plants.

A total of 568 vertebrate species have been recorded in the site, comprising 113 mammals, 81 reptiles and amphibians, 302 birds and 72 fish. The fauna is typical of the limestone karst forests of the Annamite mountains.

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The high mammal species richness includes threatened species such as tiger, Asiatic black bear, Asian elephant, giant muntjac, Asian wild dog, gaus, and the newly discovered sao la. The site is particularly rich in primates, with 10 species and subspecies forming 45% of the total number of species in Viet Nam.

River systems

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Along with the system of miraculous caves, Trooc River, Chay River and Son River in Phong Nha – Ke Bang region with the fresh blue streams winding among rocky-forested areas have created a poetic beauty as a magnificent water - color painting.

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Tourist will be actually lost in a dreaming and romantic heaven when setting foot in the beautiful land.

Additionally, Phong Nha - Ke Bang primeval forest with dozens of peaks over 1,000m high, full of obstacles and no human footprints, is an attractive rendezvous for climbing and exploring. Among them, Peak Co Rilata with the height of 1,128 m, Co Preu with 1,213m high should be actually named.

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Interspersing among over 1,000m mountain peaks are wonderful valleys and lower peaks of 800 - 1,000m high, namely Phu Sinh, Ma Ma, which facilitates ecotourism and climbing. Especially, Ma Tac Mountain owning 721m high with the surface of 70 hectare wide actually left a deep impression to tourists' mind.

Maps