Oxalis Adventure Tours provides high quality, cave and jungle adventure tours in Phong Nha including the largest of caves Son Doong Cave and Hang En Cave; home to some of the rarest formations ever seen by humankind Hang Va Cave, Nuoc Nut Cave and the nearby cave system called Tu Lan Cave System owning some of the most beautiful and top caves in Vietnam. Oxalis is the first adventure caving company in Vietnam and still offers the highest quality tours available in Phong Nha – Ke Bang National Park, Quang Binh Province, Central Vietnam.

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.

All tours are carefully designed, and tour guides trained by the expert cavers with many years experiences from the British Caving Research Association. We only use the best brands of safety equipments at an international-standard. We guarantee small group sizes unlike many other tour companies. We are also committed to providing stable employment for local people and investment in the local community. 

Featured Tours

Our Caves

Nuoc Nut Cave

Nuoc Nut Cave has become one of the world’s most attractive natural wonders for exploratory journeys in Vietnam. This cave is suitable for family, children to do a bit of adventure

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Hang Tien Cave

Hang Tien is the largest dry cave of the Tu Lan Cave System, located about 70 km away from Phong Nha Ke Bang National Park. Suitable for adventurous travellers who want to look for a bit of challenges.

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Hang Va Cave

Hang Va Cave was found in 2012 by Ho Khanh, a local man in Phong Nha. This cave is located below Son Doong cave, and has rare formations called tower cone. Oxalis Adventure is organizing 2 days and 1 night expedition to this cave.

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Son Doong Cave

Son Doong Cave is the largest cave in the world and is in the heart of the Phong Nha Ke Bang National Park, with its own jungle, river and gigantic formations, it is truly a natural wonder unlike any other in the world!

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Hang En Cave

Hang En Cave is the world’s 3rd largest cave located in Phong Nha - Ke Bang National Park. It is one of the most recognizable and impressive caverns on the planet. Oxalis Adventure is currently the only tour operator bringing tourist to this cave. Hang En Cave is the best cave camping in the world

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Tu Lan Cave System

Tu Lan Caves System is comprised of over 10 caves, in Tan Hoa village. The area has been used as film location for Kong: Skull Island movie. Oxalis Adventrue is the only company orgarnizing trekking tour from one to four days.

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Phong Nha Travel Information

Top 10 Phong Nha Hotels

Below are our top 10 recommendation places to stay in Phong Nha & Dong Hoi that you might want to consider during your travel!

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Getting to Phong Nha

It is becoming easier to travel to Phong Nha, there are more connections and ways to reach Phong Nha than ever before.

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Oxalis News

We are local and we love Phong Nha! Here we share some of the Oxalis Stories that make up our passion for this beautiful place and its people.

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Our Local Travel Specialists

Our expert travel specialists can help you with all your questions and concerns, ranging from supporting you in determining which tour is most suitable for you, booking your tour, assisting you with details regarding your arrival and departure, and much more.

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