Phong Nha Cave – Underground river

Phong Nha cave, from which the name to the whole system and the park is derived, is famous for its rock formations which have been given names such as the “Lion”, the “Fairy Caves”, the “Royal Court”, and the “Buddha”. Phong Nha cave is 7729 m long but tourists can only penetrate to a distance of 1500 m.and contains several grottoes or chamber, including the Bi Ky grottoes.

Its cave system features underground passageways and river caves filled with stalactites and stalagmites. The stalagmites that used to stand at the cave’s entrance apparently inspired its name: Phong Nha means ‘Wind and Teeth’.

Phong Nha Cave
Phong Nha Cave

Phong Nha is famous for its rock formation that bear intriguing names such as the ‘Lion’, ‘Unicorn’, ‘Kneeling elephant’ and ‘the Buddha’. After flowing about 19 km underground, the Son river emerges from the mouth of this cave, draining a huge area of the limestone mountains around Phong Nha.

Zipline Chay River explorer Dark Cave

Phong Nha has been voted as one of the most wonderful caves in the world for a number of reasons: for its longest underground river, for its most beautiful underground lake. for its highest and widest entrance, for its most beautiful and widest dry cave, for its most beautiful sandbank and reef, as well as for its most spectacular stalactites, stalagmites and longest water grottos.

Paradise Cave in Quang Binh Viet Nam

Cave expedition Royal, after the survey together with the beautiful photos, impressive, has made a big splash in the journal International Caver. And from there, Phong Nha is widely known as one of the 7 wonders First criteria:

7 best things about Phong Nha

Hang with the most beautiful underground river;
There is high and wide entrance;
There are sandy beaches, beautiful reefs;
There are beautiful underground lake;
There are large and beautiful dry cave;
Systematic stalactites and magnificent magic;
Is the longest water cave.
From this expedition together with the documents collected, in 1995, the People’s Committee of Quang Binh province has decided to put into operation the Phong Nha tourist. And ever since it became the No. 1 attraction of Phong Nha – Ke Bang.

Inside the Phong Nha

Phong Nha is the world’s largest wet with vast underground river system. However, there are a few places that has both broad high runoff water can not reach. Where visitors walk spoiled, comfortable admire the splendor of the natural stalactites created with all the magic. The cave is divided into three parts, each of which is home to many different animals and have a big difference in temperature.

A cave with water and lights Description automatically generated

Phong Nha Cave
Phong Nha Cave

Entrance area

Door and the first few meters inside the cave known as the entrance. This is the home of all the animal species living in the sun, near the edge of the entrance area. Each live animals in the park are able to do so: the birds, monkeys, fish, insects and many other species.

Mediatrix region

This is installed artificial lighting system, also known as the twilight zone, that is where the light and dark reconciled with each other, forming a fuzzy area very magical. Not many animals live in this area because there are a lot of visitors each day. If yes, then mostly found in countries such as crabs, shrimp, eel, and various fish species.

field night

After last electric light system in the entrance area from 1.200m not much was left but darkness. Here, the core experience is dark and the wind hitting the cliffs. Increasingly deeper into the shadows inside, the more exotic animals than, a lot of animals living inside the cave without light, such as fish, bats, insects …. These insects can survive and overcome the darkness with ease. Occasionally, can find lizards in the dark red but the chance to see them is quite difficult.

Cave Conservation

There are many ways to ruin tourist caves that have been accidentally created, the first reason is the most curious visitors tried to touch stalactites. You can tell that it is not legitimate reasons, but it really is true. When a person touches one of these stalactites, oils from the skin will stick to the emulsion and the water will flow through the oil brushed instead stick to form a new emulsion layers. You can imagine that hundreds of people touching each year will create a significant impact on how.
The second reason is the change of the carbon dioxide in the air. The more people into work, the balance as change. This will affect the overall temperature within them.


In the late 19th century, Leopold Michel Cadiere – legal missionaries – to participate in the Phong Nha cave exploring 600m for the first time, where he was discovered on the wall of ancient relics and also maintains an altar belong to the Cham. Cham people have lived here hundreds of years ago, and maintained their ancient cultures found throughout Vietnam (in the US base). This ancient civilization with their own ancient word has yet to be fully decoded until now and it will be kept a secret for many years.

A cave with a body of water Description automatically generated


One other great aspect of Phong Nha cave is more fossils can be found wrapped around the side of the large limestone wall. The fossils are marine organisms such as fish, sea snails, crabs and many other species. In fact the entire surface of Phong Nha – Ke Bang National Park is filled with fossils can be seen in the light of day after hundreds of millions of years.

So, after hundreds of millions of years of natural movement, Phong Nha cave is still full of mysteries waiting for you to discover. And the most typical cave aesthetic value, the uniqueness in Heritage Phong Nha – Ke Bang.

Currently Visitors Center Phong Nha – Ke Bang is organized for visitors under 2 Phong Nha tourist routes:

1. Tour Phong Nha-action Wonder Junior
2. Route Explore and conquer Xuyen Son Ho Phong Nha 4.500m

Tour price

Entrance fees and services:
Phong Nha-Route 1. First Wonder of action
Guests height:
– From 1.3 m upwards: 150,000 VND / person / trip
– Less than 1.3 m: Free tour
Boat transportation: 550,000 VND / trip and the (Maximum 14 people, including children)
Services Guides: 200,000 / HDV Vietnamese
300,000 / HDV English
– Organization and dinner to guests needs, please contact the restaurant Son Doong (see RESTAURANT-SERVICES).

2. Route Explore Xuyen Son Ho and Phong Nha 4.500m conquer:
Price: VND 1,700,000 VND / pax
Package Includes:
– Entrance fees;
– Guides (or staff supervision);
– Boat transportation (03 pax / boat for canoe, 02 pax / boat for kayaking);
– Rescue;
– Transportation to the Phong Nha cave entrance
– Equipment dedicated to visit

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Phong Nha


December 13, 2015
“A different experience than Paradise Cave ” Amazing cave, boat took us 1km into the cave, and turn back to dock us at the side to allow us to explore part of the cave on foot. Here you get to take pics close to the cave structures, unlike Paradise Cave where there is a structured walkway for visitors, here there is no structured walkway, you will be walking on sandy surface. The whole trip took about 1-2hrs. Visited December 2015
Christopher W
December 13, 2015
“Scenic and unusual cave visit” We visited Phong Nha Cave a UNESCO World Heritage Site in Quảng Bình Province, Vietnam. from Hue in November 2015 It was a Long trip from Hue about 4hours car ride Although it was the rainy season,this year the rains seem delayed and we were still able to visit Normally the cave would be flooded and no boat can enter from Nov. On reaching the Phong Nha-Kẻ Bàng National Park, The view became scenic with spectacular limestones hills on both sides of the river journey to the caves Phong means wind and at the entrance to the cave you can feel a cool strong Breeze Entering the cave by boat is unusual compare to other cave visits No motor is used inside the cave , only oars by two boat ladies, it gives a serene and surreal journey as we peer at the formations inside most given names as their resemblance to animals and fairies The cave contains 14 grottoes, as well as a 13,969 metre underground river that can reach Laos.We are only allowed to explore the first 1500 metres. On our Long journey back to Hue we are Glad that the Phong Nha cave lived up to its Heritage status.
December 13, 2015
“Cave tour” When arriving every guest house offers you 'their' tour ranging from 1250000 - 1450000 dong. After looking around we chose phong Nha backpacker hostel tour which did same tour of paradise and dark cave with lunch but was 1100000 and included a drink at the end. Great day with ngoc the guide. Paradise cave most amazing decorative case we have ever seen and the dark cave a great adventure! Zip line, swim, mud bath, kayak, then more flying foxes and ropes course over the river. Fantastic trip even for us 50 yr olds- we kept up with those 20 yr old backpackers! Visited November 2015
December 13, 2015
“beautiful caves” Phong Nha caves are very big and beautiful. the mountains surrounding the caves and the boat ride in are breath taking .being inside the caves itself is like being on another planel.highly recommend this tour for any traveler visiting vietnam Visited October 2015
December 13, 2015
“Outstanding site despite the tourists” Yes, this place has become a tourist mecca, and now has its share of budget eateries, trinket shops, and mini-hotels. But interestingly, this is a place where both Vietnamese and non-Vietnamese tourists go, and the energy works out well. The local tourist authority has taken the boat traffic in hand and assigns each boating family - usually poor Catholics from the other side of the river - one trip per day. If you can afford it, rent a boat all to yourself for you and your party. That way, you can go at your own pace. You go in the cave after passing a riverside memorial to North Vietnamese soldiers who perished here during the American War; you're dropped off after a tour inside and walk back out after passing various rock formations, etc. Your boatman meets you at a quay. Fantastic! Visited July 2015
January 28, 2016
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