Conquering Canh Cao sinkhole
Explore the UNESCO Geopark in Cao Bang


"Mat Than Mountain - Thang Hen Lake" is probably a familiar destination for everyone when traveling and exploring Tra Linh district, a part of "Cao Bang Non Nuoc UNESCO Global Geopark" but perhaps only a few people have ever set foot in "Ky Rang Cave and Canh Cao Sinkhole".

The journey “Conquering Canh Cao Sinkhole – Thang Hen Lake – Ky Rang Cave – Mat Than Mountain” is a wonderful combination of experiences: trekking in the old forest from Mat Than Mountain through Na Ma Valley to Thang Hen Lake, climbing up the cliffs, exploring the cave through the mountain – “Ky Rang Cave”, SUP on the lake, camping next to Mat Than Mountain and especially “swinging to conquer Canh Cao Death Sinkhole”, experiencing zipline and the feeling of being suspended in the middle of a giant sinkhole with a height of up to ~150m.
This is the first zipline expedition in the Northeast so you will be supported and trained by leading experts from Vietnam Expeditions , best equipped with imported equipment.
The tour does not accept members with cardiovascular, blood pressure, respiratory, bone and joint diseases and fear of heights. Customers need to be honest about their health status to receive the best advice before participating.
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20:30: Tour guide picks up the group in Hanoi (My Dinh bus station) to start the journey to conquer Canh Cao Sinkhole, departing for Tra Linh district, Cao Bang.

05:00: The group arrives at Thang Hen Lake Tourist Area.

06:00: Watch the sunrise and have breakfast.

07:00: Get on the car to move to Mat Than Mountain, the starting point of Trekking.

07:30: Check in Nam Tra waterfall.

08:00: Start trekking through Na Ma valley, passing through buckwheat flower fields, purple Ham Ha flowers or corn fields…, walking under the special-use forest.

10:30: Start the journey through Ky Rang cave, with a system of strangely shaped and colorful stalactites.

12:00: Lunch, rest.

13:00: Continue walking to Thang Hen Lake.

14:00: Arrive at Thang Hen, check in and rest.

15:00: Technical training: You will be trained by experts and technical team of Vietnam Expeditions on rope swinging, using equipment and safety principles in the next journey.

16:30: Relaxing activities, SUP rowing to check in at Thang Hen Lake. 18:00: Shower and prepare dinner.

19:00: Enjoy a unique dinner at Ham Huong cave with local specialties.

21:00: Time to rest, go to bed.

07:00: Enjoy a peaceful, poetic morning at Thang Hen Lake. Have breakfast.

08:00: Departure, journey to explore the old forest, rocky mountains, Tra Linh nature reserve. Approach Canh Cao sinkhole – the deepest and most attractive point.

09:30: Approaching the sinkhole. With the help of the
safety team, the whole group climbed down the sinkhole with a rope.

11:00: The group rests and has lunch in the heart of Canh Cao sinkhole.

13:00: Challenge yourself by hanging in the middle of the sinkhole by Zipline. You will experience the feeling of “flying”, looking down from above at the bottom of the sinkhole.

15:00: Trekking through the sinkhole back to Thang Hen Lake.

16:00: Shower, rest, dinner.

19:00: Get on the bus back to Hanoi

05:00 (next day): Arrive in Hanoi (estimated)

Thanks and see you again!


Your tour staff will advise you on the items you need to prepare very carefully before you join the tour.


  High quality car shuttle Hanoi - Cao Bang, means of transportation in the program.
  Main meals and snacks according to the program.
  Standard bottled drinking water 2 bottles/day.
  Sightseeing tickets according to the program.
  Equipment and supplies ensure safety during the tour.
  Professional tour guides, safety assistants, and Porters enthusiastically serve the group throughout the journey.
  Travel insurance with service compensation of 20,000,000/person/case
  Camping tent, Homestay.

Not included

  Tips for drivers and tour guides.
  Personal expenses and other expenses outside the tour program.
7,490,000 VND / PAX
7,990,000 VND / PAX
Level 3
3 days 2 nights
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Tour booking process

To ensure a safe and thoughtful trip, you need to clearly read the information about the tour booking process as follows:

Step 1: Find out tour information

Step 2: Fill in the information in the booking form.

Step 3:  VNE will contact you to confirm the information

Step 4: Pay 50% of the tour fee to confirm, the remaining amount will be paid 3 days before tour departure.

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