PhongNha – KeBang is a huge national park located

Climate

Like the North-central (or BacTrungBo) in general and QuangBinh Province in particular, the climate in this national park is tropical, hot, and humid. The annual mean temperature is 23 to 25°C, with a maximum of 41°C in the summer and a minimum of 6°C in the winter. Annual rainfall is 2,000 mm to 2,500 mm, and 88% of the rainfall is from July to December. With more than 160 rainy days per year, no month is without rain. Mean annual relative humidity is 84%. The typical tropical climate has helped build up a pure atmosphere of the green ecological environment, ideal for any visitor.

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Formation History

Formation: The PhongNha–KeBang karst has evolved since the Paleozoic (some 400 million years ago) and so is the oldest major karst area in Asia. Like much of Vietnam, it has been subject to extensive tectonic changes, thus the limestones of PhongNha are inter-bedded 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.

Historical name: The park deprives it name from PhongNha cave, the most beautiful of all, containing many fascinating rock formations, and KeBang forest. One has explained that PhongNha means “Wind and teeth” based on Chinese transcription, which expresses the blowing wind inside the cave and teeth-like rough stalagtites. There have been several other ways of explanation, yet none is more popular than this. 

People now flock to this National Park for contemplating the UNESCO-recognized world natural beauty, and also for directly witnessing the fabulous rock formations inside the caves.

A nature-gifted magnificient landscape: 7 best in one

PhongNha-KeBang park takes pride in the assessment of containing “7 best things” as a result of a National Science Conference held in QuangBinh in April, 1997. They are:

1. The longest water cave 

2. The highest and widest cave mouth

3. The widest and most beautiful sand & rock bank 

4. The most beautiful underground lake 

5. The most magnificient and miraculous stalactite 

6. The nation’s longest underground river (around 13,969 m)

7. The nicest and widest dry cave

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Rivers & Streams

PhongNha is such a beautiful landscape that you may have to hold your breath on contemplating. Here are the charming Son and Chay Rivers, (the two longest underground ones in the PhongNha - KeBang), gently flowing in the middle of the two sides’ reed and green bamboo rows. Most of the caves here have been shaped by those two rivers. The Son River flows into the mouth of the PhongNha cave, which is the only point where it emerges in around 20 kilometeres. Also, there are more than ten spectacular streams, springs and waterfalls in PhongNha - KeBang area, namely Gió waterfall, Madame Loan & Chài waterfall, Mọc stream erupting from a limestone mount range, and TraAng stream. Far far away can you see the enchanting pure BongLai Lake and Chai waterfall, adorned with a number of dark violet “bằng lăng” flower baskets blooming in the warm weather. Some tourists ever uttered: “Wow! Heaven!” since the scenery is so much romantic and marvellous!