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  • Not just one cave, but many. Altogether we’ve surveyed more than 20 caves in the system, both dry caves and wet caves.
  • The caves are connected by sweeping rivers and surrounded by buffalo fields, peanut farms and karst mountains.
  • Explored and surveyed by the British Cave Research Association for the first time in 1992, though the system has been known to locals for much longer.
  • The system featured in Hollywood’s 2017 blockbuster “Kong: Skull Island” with Tom Hiddleston, Samuel L. Jackson and Brie Larson.
  • Not possible to sleep inside the caves, but there are stunning campsites near the openings.
  • Located just outside of Phong Nha-Ke Bang National Park, home to the world’s largest caves.
  • Oxalis Adventure works with the British Cave Research Association and the Vietnamese government to carry out the expeditions.
  • You can visit Tu Lan on one-day, two-day, three-day and four-day experiences with Oxalis Adventure.

The Tu Lan cave system comprises more than twenty caves and was first explored by British caving experts in 1992, although its location has been known for much longer. It was first surveyed more extensively in 2010 with several subsequent surveys. The system lies outside of Phong Nha-Ke Bang National Park.


The tectonic plates that formed the karst in the area are in a constant state of flux. At the same time, the ferocious rivers continue to carve out caves at the system’s lowest points. Hence, as a general rule, the wetter the cave, the younger it is. The older caves in the system are completely dry and now sit halfway up the karst mountains. The different caves mean that the Tu Lan cave system offers incredible variety with regard to the formations. The caves are possibly between 3 and 5 million years old.

Visiting Tu Lan

You can visit the Tu Lan cave system on one-day, two-day, three-day and four-day expeditions with Oxalis Adventure.

Hang Tien

Tu Lan Experience 1 Day

An action-packed day trek to explore the marvelous jungle and caves of the Tu Lan System - home of the Hollywood blockbuster Kong: Skull Island (2017)

VND 1,800,000/person Stimulus price 2020 VND 1,400,000 Normal price VND 1,800,000/pax
Tu Lan

Tu Lan Cave Encounter

This tour is perfect if you are short on time but still want a solid taste of adventure in the amazing Tu Lan jungle and cave system.

VND 5,500,000/person Stimulus price 2020 VND 4,400,000 Normal price VND 5,500,000/pax
Hang Va

Wild Tu Lan Cave Explorer

This exciting journey has some challenging sections, but with the help of the team you will explore six amazing caves.

VND 8,000,000/person Stimulus price 2020 VND 6,400,000 Normal price VND 8,000,000/pax

Tu Lan Expedition

Provides a highly informative insight into this unique caving region, home to the most spectacular caves and jungle of Vietnam!

VND 15,000,000/person Stimulus price 2020 VND 12,000,000 Normal price VND 15,000,000/pax
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Whether you prefer long treks, camping in a cave, sleeping under the stars in the jungle, swimming underground in river caves, explore the huge dry caves or just taking an exploratory day trip, Oxalis Adventure Tours can provide the right amount of adventure just for you.

1 day tour

2 day tour

3 day tour

4 day tour