17:59 - 08.05.2025
CHAY RIVER – DARK CAVE TRAVEL EXPERIENCE
17:33 - 15.03.2024
Chay River – Dark Cave is one of the attractions of Quang Binh tourism lcated in the core area of Phong Nha – Ke Bang National Park. Right on the Ho Chi Minh road to Paradise Cave, right on the bank of Chay River.
Chay River – Dark Cave is a destination chosen by many tourists when coming to Quang Binh, especially young people. The journey has many different combined experiences such as: Mud bathing, Zipline, Kayaking or short zipline.

Chay River – Dark Cave has now been exploited by many domestic and international travel agencies for sightseeing. Therefore, this has become one of the attractive tourist destinations in Quang Binh. Dark Cave represents the geological formation about 400-500 million years ago. During the resistance war against the US to save the country, Dark Cave was used as a bomb shelter.


Where is Chay River and Dark Cave?
Chay River – Dark Cave is located in Bo Trach district, Quang Binh province. It is 75km northwest of Dong Hoi and about 3km from Thien Duong Cave. This attraction is currently managed by Phong Nha Ke Bang National Park. You can only get here by car or motorbike. Buses currently only run from Dong Hoi to Phong Nha. If you want to get here from Phong Nha, you must rent a tourist car in Phong Nha or join a tour.
You can go here to see directions on google map

Introduction to Chay River and Dark Cave
In 1992, the cave was discovered by the British Royal Cave Exploration Association and named Toi because of the dense darkness that covers every corner of the cave. The cave is 5,258m long, 80m high, 50m wide, including 2 entrances: the front entrance adjacent to the Chay River (30m high, more than 10m wide) and the back entrance adjacent to the forest (50m high, about 20m wide). In the cave, there are many stalactites with diverse shapes and colors. The old stalactites have turned color, some are lemon yellow, some are lime white, some are moss green. In particular, Toi Cave has stalactites with parasitic ferns living on them – a rare sight in other caves.


According to scientists, these stalactites are traces of a period of strong geological movements. Dark Cave also has underground rivers tens of meters deep, a natural freshwater lake named Thuy Tien and a mud lake about 20 square meters wide with essential minerals that are very good for human health. In addition, the Dark Cave area is also home to animals such as bats, swallows, etc., especially the Ha Tinh Langur – a primate species listed in the Vietnam Red Book.
Chay River and Dark Cave attract tourists to visit
Currently, this tourist attraction is managed by Phong Nha – Ke Bang Tourism Center. It is invested and exploited with many attractive services. From the Chay River animal observation station, visitors can experience the 400m long zipline service across the river to the front door of Dark Cave. After exploring and bathing in mud in the cave, visitors will kayak to explore Chay River. Then swing down the rope to bathe in the river and participate in many interesting water games.

Revealing the experience of having fun at the Song Chay Zipline area – Dark Cave mud bath

What should you bring when traveling?
- You should prepare yourself a bikini for the Dark Cave mud bath.
- If you don’t want to take a mud bath in Hang Toi, you can wear whatever clothes you feel most comfortable in. But it’s best to wear swimming trunks for convenience when swinging and bathing in the stream.
- You should also prepare a towel to dry yourself after bathing in the stream. Of course, there will be one in the tourist area, but I think you should use your own towel.
- In addition, you should wear comfortable clothes, sunglasses, and sunscreen.
- Sandals are best because wearing shoes after bathing in the stream will be very uncomfortable. But it depends on your preference.
See more travel to Quang Binh experience: https://quangbinhtravel.vn/en/traveling-quang-binh.html
How to buy tickets
There are 2 types of tickets to visit Chay River – Dark Cave. Once purchased, admission tickets are non-refundable. Admission tickets include the following services:
+ Package ticket: 450,000 VND/ticket.
Ticket service includes games: Zipline, Mud bath, Kayaking, Chay river bathing, Life jackets, headlamps, Cave helmets, and a series of game shows.
+ Separate service ticket: 270,000 VND/ticket
Services include: Zipline, Kayaking, Chay River Bathing, Life Jackets, playing a series of game shows, etc.
Instructions for operating at the Song Chay Hang Toi zipline area quickly, neatly, and scientifically
After buying your ticket to go through the gate, quickly change your clothes (choose appropriate clothes for each type of service). Get yourself a life jacket to hold in your hand.
Then you line up in the circle in order so that the tour guide can put on the Zipline for you, provide a headlamp, and a helmet. Note that you should test the light device to see if it is bright. Because the journey into the Dark Cave requires light.

After finishing everything, put on your life jacket. And go up to the Zipline building, Mud bath, Rowing boat, Stream bath, play Game Show.

Travel to Chay River – Dark Cave by tour
If you want to join a Quang Binh tourist group, you can refer to the following tours:
- Dong Hoi – Paradise Cave – KAYAK Chay River – Dark Cave – Dong Hoi (1 day)
- ĐỒNG HỚI – VIẾNG ĐẠI TƯỚNG VÕ NGUYÊN GIÁP – ĐỘNG THIÊN ĐƯỜNG – ZIPLINE HANG TỐI
- Hanoi Quang Binh Tour 30/04
Above are some notes to make your trip to Song Chay Hang Toi quick and perfect. If you need full information about Quang Binh, please refer to the article All experiences of Quang Binh Tourism
Some questions that tourists often ask at Song Chay
Currently, Song Chay – Dark Cave is open to serve tourists. Visitors can experience Zipline and mud bath here. Quang Binh is a safe destination at the present time. The whole province has not had any Covid cases. 
Currently, according to the stimulus program of Quang Binh Provincial People’s Committee, ticket prices for Chay River and Dark Cave are discounted from January 1 to March 31 and October 1 to December 31, so each service package will have its own discount policies.
Currently, public transport such as buses only go to Phong Nha Cave. If you want to go to Dark Cave, you can rent a car or motorbike. You can rent a car in Phong Nha or in Dong Hoi.
With the requirement that women wear bikinis and men wear bathing suits when taking mud baths, visitors can bring towels. Chay River is a beautiful place to take pictures, so you can bring comfortable clothes to take pictures on Chay River.
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