The area of Tu Lan lies 70 km away from Phong Nha – Ke Bang National Park, next to the minority village of Tan Hoa, just past the fields of grazing buffalo and rapidly growing peanut and cornfields
Exploring Tu Lan Caves System will see you trekking through remote, untouched jungle; crossing buffalo fields; being surrounded by giant, looming, limestone mountains on all sides; and plunging into deep, cool, underground rivers that wind gracefully through mountains and river valleys alike.


Tu Lan Cave System is comprised of over 10 caves in all, some of which were originally discovered and explored in 1992, and some of which were just found in the past couple years.
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Hang Ton, first found in 1992 and explored more in depth in 2012, appears first on the horizon on a trek to this intricate cave system. Its dry entrance provides an outstanding view of the valley below, and promises many more adventures inside. A ladder inside leads to the floor of the cave, and from there the journey truly begins, where one must swim through the cave to reach the exit on the other side.
Of course, locals have been visiting some these caves for thousands of years as well.


Because the tectonic plates in this region are always moving and bumping into each other, the mountains are still rising and moving up. The rivers continue to cut into the bottom of the mountain, carving new caves over time. Hence, the river caves that are at a lower elevation are much younger than the higher, dry caves as they were more recently created.See more

The river caves in this system such as Ken Cave and Tu Lan Cave are very young, only about 3 million years old. The higher, dry caves (dry Tu Lan and Ton Cave) are much older, and date around 5 million years old.
The stalactites and stalagmites are enormous and breathtaking. One of the caves in the Tu Lan cave system, Ken Cave, even had it’s beautiful formations featured recently in National Geographic by world renowned photographer Carsten Peter.

Famous hollywood film location

One of the first blockbuster Hollywood films to shoot in Vietnam selected Tu Lan as one of the key locations. Logistically it was a tough setup but through the work of hundreds of foreign and local crew the area leading into Tu Lan was turned into the crash-landing site of a fighter plane with characters played by Samuel L Jackson and John Goodman. The two squared off beside the river before King Kong himself decided to get involved.See more

Oxalis is very proud to have been involved directly in arranging a number of aspects of the production including assistance with the location. Quite a number of our porters from the village of Tan Hoa, plus some of our guides were even hired by the team to support the cast and crew during the shooting days.
Also, recently a couple of other caves including Hung Ton and Rat Cave, were used in the Vietnamese film “The Immortal” By Director Victor Vu. This was a big hit in Vietnam and followed the journey of a man who mysteriously spent hundreds of years living in Tu Lan before being drawn out by love, though this is more a thriller than a love story!

Tourist activities

Oxalis Adventure operates a variety of adventure toursto the amazing Tu Lan Cave System, ranging from 1 Day tours to 4 Day tours (Easy, Moderate, Challenging and Hard).

The porters for all these tours are employed from the Tan Hoa village as a means of local community involvement by Oxalis.

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
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
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

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