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Oxalis strives to make a positive impact both within Phong Nha, the main headquarters located next to Phong Nha Ke Bang National Park, and Tan Hoa, the secondary headquarters located next to the Tu Lan jungle and cave system.


Our three top priorities are:
Safety. We never compromise on this.
Conservation. We always maintain the integrity of the caves.
Community Involvement: We provide employment for many hundreds of locals.


Empowering the local economy is an important tenet of the Oxalis Adventure philosophy – and has been since the beginning. As we continue to grow, more locals are employed, including sales executives, operations team members, accountants, tour guides, kitchen and hotel staff, and – the backbone of the organization— the porter team.

At the same time, our activities have helped transform Phong Nha into a vibrant tourist destination, spurring new small businesses. Oxalis Adventure is also committed to transparency, ethics and working in compliance with local laws, using an auditing assurance service from PricewaterhouseCoopers Vietnam Ltd to verify our accounting and taxes. Oxalis is also dedicated to social accountability and labor law.


Environmental conservation and sustainable environmental practices are visible on every tour. Within the caves, strict paths are set so that erosion is kept to a minimum and delicate formations are protected. National Park rangers also join tours that run within the national park to ensure that Oxalis Adventure is protecting it.

Everything that is brought into the jungle or caves is also brought out and there is no permanent infrastructure. Composting toilets are set up at campsites to protect the jungle and waterways from raw waste. We also conduct regular environmental impact assessments. Tours are closed for several months each year for the jungle and caves to recover.


Sustainability within the community context is most noticeable through the Oxalis Foundation. The Oxalis Foundation has launched several projects since its creation in 2014, including providing financial support to local homestays, training assistance to local businesses, scholarships and helping to build schools, libraries and more.

Future Efforts

Future efforts include continuing above measures and also preparation for this year’s flooding season by enacting clean up efforts along the river as part of reducing trash and bringing more environmental awareness to the region.

By committing to sustainability, Oxalis can ensure proper conservation of the cave kingdom’s most prized gems for today and future generations, and also promote responsible travel and tourism development.

Stay tuned for updates on the Oxalis Foundation and sustainability with Oxalis Adventure Tours!