Son Doong caves

Attraction Tan Trach Bo Trach Tan Trach Vietnam Published on: 13-11-2015

9 hours
08:00 AM - 05:00 PM
09:00 AM
03:00 PM
First-time visit
Kids Friendly
3.00 USD

Son Doong caves is good for

Good for family with kids Family with kids Good
Good for senior Senior Good
Good for couple Couple Good
Good for solo Solo Good
Good for group Group Good
  • Highly recommended by fellow travellers.
Son Doong cave is the world's largest cave, located in Quang Binh province, Vietnam. It is found by a local man named Ho Khanh in 1991.

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Why Son Doong caves is special ?

Sơn Đoòng Cave was found by a local man named Hồ-Khanh in 1991. The whistling sound of wind and roar of a rushing stream in the cave heard through the entrance as well as the steep descent prevented the local people from entering the cave. Only in 2009 did the cave become internationally known after a group of scientists from the British Cave Research Association, led by Howard and Deb Limbert, conducted a survey in Phong Nha-Kẻ Bàng from 10 to 14 April 2009. Their progress was stopped by a large, 60-metre (200 ft) high calcite wall, which was named The Great Wall of Vietnam. It was traversed in 2010 when the group reached the end of the cave passage.

More importantly, you are only allowed to enter the cave with the Oxalis Adventure Tours. Contact them at: for more information.


What to explore at Son Doong caves?

According to the Limberts, the cave is five times larger than nearby caves like Phong Nha Cave and Hang En, the third largest cave in the world previously considered the biggest cave in Vietnam. The biggest chamber of Sơn Đoòng is more than 5 kilometres (3.1 mi) long, 200 metres (660 ft) high and 150 metres (490 ft) wide. With these dimensions, Sơn Đoòng overtook Deer Cave in Malaysia in 2009 to take the title of the world's largest cave. The cave runs for approximately 9 kilometres (5.6 mi) and is punctuated by 2 large dolines, which are areas where the ceiling of the cave have collapsed. The dolines allow sunlight to enter sections of the cave and has resulted in the growth of trees as well as other vegetation.

The cave contains some of the tallest known stalagmites in the world, which are up to 70 m tall. Behind the Great Wall of Vietnam were found cave pearls the size of baseballs, an abnormally large size.


How to get to Son Doong caves?

It is situated below another cave in Phong Nha-Ke Bang, though its entry passage is very difficult to traverse. The exploration team said they had set foot on just 6.5 kilometers along the cave, as there is a large amount of fast flowing water inside Son Dong. It takes explorers 6 hours of walking through a 10 kilometer long forest path from Truong Son Highway to reach the mouth of Son Dong cave.


Selling points

  • Worth every penny
  • For a lifetime experience
  • One of the Finest Caves in the World
  • The biggest cave in the world
  • Spectacular Hidden Gem
My Son Valley and Hoi An Full-Day Tour from Hue

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1.0 day
148.46 USD
Total travel distance
Number of places
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Tan Trach Bo Trach Tan Trach Vietnam

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Tips for you

  • Don't forget to bring hats, jackets, rain coats and mosquito repellent.
    What to bring
  • You should bring your camera to caught the spectacular sightseeing of the nice cave.
  • You only can get inside the cave with the Oxalis Adventure Tours. Website:
  • You should keep eyes on your children to avoid getting lost.
  • The time visiting Son Dong depends on which type of tour you book.
  • It requires a lot of work so you need to be well-train before going through this tour.
  • It's better to book tour 3 months earlier.


TripAdvisor View more

I was fortunate to be able to book the Son Doong Cave tour with Oxalis Tours. My trip started on 31st July 2015. All of my arrangements with Oxalis were handled efficiently and professionally. The safety briefing the night before our tour was comprehensive and ensured we knew what we heading into. Our 2 Britishcaving experts, Watto and Sweeney were brilliant with plenty of good humour and fun yet with our safety always paramount. Trang our Vietnamese caving guide was excellent.. The variety and quality of food was good. This is a difficult trek so be prepared to be physically and mentally challenged. The best investment I made for the trip was my 510 canyoneering boots (SAR model), I had to buy these from America as I was unable to find an Australian stockist close to me. These boots provided great comfort during the many river crossings and excellent grip over the boulders in the cave. Others on the same trip struggled at times with inferior footwear. Yes the trip is expensive but when you look at what is involved the cost pales into insignificance.

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