Thien Canh Son Cave (Hang Co)

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Thien Canh Son Cave

 Thien Canh Son Cave is one of the most stunning caves of Ha Long Bay-Bai Tu Long Bay.

It is situated on Hon Co Island, Cong Do Nature Reserve, Bai Tu Long Bay. The cave has a prime location in the heart of Ha Long, which is approximately 20 kilometers away from Tuan Chau International Tourist Wharf of Ha Long City.

Bai Tu Long Bay and Halong Bay are two largest biosphere reserves in the Gulf of Tonkin. While Halong Bay contains natural and cultural values that have been formed for millions of years, Bai Tu Long Bay is the largest sea sanctuary in North Vietnam. Coming to Bai Tu Long Bay, tourists should not ignore the area of Cong Do. The total area of this island is about 23 square kilometers, and it is among the most pristine islands of Halong Bay. Not only does these areas have a diverse system of flora and fauna but also includes a large number of impressive caves, and Thien Canh Son Cave is the most outstanding one in this area. Let’s Smile Travel show you more about Thien Canh Son.

Thien Canh Son Cave History

In fact, there is no mysterious story telling about the formation of Thien Canh Son Cave. This cave has been formed by the erosion and deposition of limestones for millions of years. The impacts of water erode the calcium crystals in limestone, then the crystals combine together on the ceiling and ground of the cave to create stalagmites and stalactites.

In the past, Thien Canh Son Cave used to be called “Hang Co” because it is located on Hon Co Island. When the tourism potential of this cave was exploited, the name of this cave was changed to attract more tourists. “Thien Canh Son ” means the mountain with the view of fairy land, and if you come to visit this cave, you will decide that the cave is worthy of its beautiful name.

How to get to Thien Canh Son Cave?

The most popular means of transportation to reach Thien Canh Son Cave is by boat. You may easily find a boat tour that includes the cave in its itinerary, thanks to the cave’s prime location in the center of the area. You should take boat number 4, which will take you to some other well-known attractions in Ha Long besides Thien Canh Son Cave.

Additionally, you can take a canoe to Thien Canh Son Cave. Despite the somewhat high cost of renting a private canoe, tourists can easily explore the cave without worrying about time constraints.

When is the best time to visit Thien Canh Son Cave?

Kayak- Signature Royal Cruise Bai Tu Long Bay 5*, Du Thuyền Signature Royal Cruise 5 Sao
Guest of Signature Royal Cruise taking rowing boat in Vung Vieng Village

The best time to visit Ha Long in general and Thien Canh Son Cave in particular is from October to December, as the weather is pleasant with low chances of rain at this time. In other months, you will also not have much trouble visiting the cave, as the general weather and terrain here are very favorable.

Some famous places near Thien Canh Son

Besides Thien Canh Son Cave, Ha Long has many other must-visit tourist attractions such as:

  1. Ti Top Beach
  2. Sung Sot Cave
  3. Vung Vieng Fishing Village
  4. Ho Dong Tien Cave
  5. Luon Cave
  6. Trong Cave
  7. Trinh Nu Cave
  8. Me Cung Cave
  9. Light & Dark Cave
  10. Cua Van Fishing Village
  11. Viet Hai Village

Things to Do at Thien Canh Son Cave

Discovering the cave

In recent years, thanks to the splendid beauty of Thien Canh Son Cave, it is becoming a popular destination among tourists coming to visit Halong Bay. According to many tourists, the beauty of Thien Canh Son Cave is like the beauty of a sleeping princess who is waiting for her lover. A system of lights is installed inside Thien Canh Son Cave; it does not ruin the natural beauty of this cave but ardons the appealing appearance of the whole cave.

Thien Canh Son Cave is the place where you can see the remains of time on every stalactite and stalagmite. It is worth saying that Thien Canh Son Cave is a masterpiece of the Creator. In spite of many ups and downs of history, the beauty of Thien Canh Son is at a standstill so that everyone can contemplate this beauty.

Bai Tu Long Bay Map
Bai Tu Long Bay Map

Admiring the view of Bai Tu Long Bay from above

After visiting the interior of Thien Canh Son Cave, tourists can step out and admire the overview of Bai Tu Long Bay. Thanks to the position on the mountain slope, Thien Canh Son Cave offers tourists an ideal view of Bai Tu Long Bay. The bay that looks impressive from the cruise boat now is more charming from above. Every limestone island of Bai Tu Long is a jade of the ocean that is cosseted by the gentle mother.

Also in the area of Thien Canh Son Cave, there are many natural plant species that decorate the beauty of the cave with their flowers. Despite the harsh living conditions, the bushes and trees still implant on the rocks and bloom colorful flowers. The strong and sturdy plants are like the existence of this landscape, which is always resilient but still charming.


On Cong Do Island, at the foot of Thien Canh Son Cave, there is a small sandy beach where tourists can experience water-related activities. Coming to Thien Canh Son Cave, not only can you find your soul with the beauty of nature but you can also be immersed in the clear and cool water of the sea. The gentle waves of the beach will refresh your soul and clean all the tiredness after a long journey.

Besides swimming, you can hire a kayak or a dinghy to explore the area of Cong Do Island yourself. With a wide and diverse system of plants and animals, the area of Cong Do is a next stop for all nature-lovers. There you can see colorful fish under your boat, mischievous monkeys on the mountain cliffs and colorful orchids blooming on the Rocky Mountains. That is a true picture of life on an offshore island which is almost isolated from the mainland.


Coming to Thien Canh Son Cave, besides admiring its stunning stalactites and impressive rock formations, tourists also have the opportunity to go swimming and kayaking, as there is a small white-sand beach at the foot of the cave. Thanks to the crystal-clear water, swimming in the sea here will undoubtedly be one of the most memorable experiences on your trip to the cave. You can also kayak around to appreciate the elegant seascape of Bai Tu Long Bay.

Kayak- Signature Royal Cruise Bai Tu Long Bay 5*, Du Thuyền Signature Royal Cruise 5 Sao
Signature Royal Cruise Bai Tu Long Bay 5*, Du Thuyền Signature Royal Cruise 5 Sao

Top Cruises in Bai Tu Long visit Thien Canh Son Cave

  1. La Regina Classic Cruise 4* Bai Tu Long
  2. Signature Halong Cruise 5* Bai Tu Long
  3. Signature Royal Cruise 5* Bai Tu Long Bay
  4. Renea Cruises 4* Bai Tu Long
  5. La Muse Cruise Bai Tu Long

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