Oxalis Adventure Tours provides high quality, cave and jungle adventure tours in the UNESCO World Heritage Site of Phong Nha-Ke Bang National Park and surrounding cave systems. The area boasts both the largest and the third largest caves in the world.

Oxalis Adventure Tours holds an International Tour Operator’s Certificate issued by the National Tourism Bureau of Vietnam, and is made up of a professional team of experts on cave research, safety, tourism and sustainable development.

Whether you prefer long treks, camping in a cave, sleeping under the stars in a hammock in the jungle, swimming underground in river caves, or just taking an exploratory day trip, Oxalis Adventure Tours can provide the right amount of adventure just for you.


  • All our tours are carefully designed by the British Caving Research Association
  • We only take small groups of tourists with qualified experienced guides
  • At the heart of Oxalis is the desire to provide stable employment for local people
  • Our mission is to create a world-class adventure tourism business in Quang Binh province
  • We only use the best brands of helmets, head torches, life jackets and safety equipment

Featured Tours

Our Caves

Hang Va Cave

Although Hang Va was found recently (2012) but it has grasped a lot of attention from the public (both in Vietnam and in the world) because of its wonderful formations inside the 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 is the world’s 3rd largest cave, succeeded only by Deer Cave in Malaysia and Hang Son Doong, also located here in the Cave Kingdom of Vietnam, Phong Nha-Ke Bang National Park.

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From The Blog


SON DOONG CAVE: NEW UNDERWATER PASSAGE TO BE EXPLORED Caving experts are preparing to dive a 600m unexplored river passage of Son Doong Cave with the hope of finding a connection between Son Doong Cave and a nearby river cave, clearly making this much bigger than...

13 October 2018

Tu Lan Adventure Race 2018

Tu Lan Adventure Race 2016 is a competition between 10 teams throughout multiple activities such as boat racing, jungle trekking, rivers crossing, caving and swimming inside caves. This year (2016) program happens from 01 April 2016 to 03 April 2016.

30 November 2017

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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What Others Are Saying