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Sustainability within Oxalis embodies a variety of aspects, including economical, environmental, and social/cultural components. 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 top priorities:
Safety: Everything we do, SAFETY for customers and staff is our No.1 priority. Safety is not to bargain.
Conservation: Everything we do, CONSERVATION of caves, jungle and protecting the environment is our to priority.
Community Involvement: In all business we do, involving local community in our business is No.1 priority, local people are working as porter, chef, guide are great resources to our success business.


Economical sustainability started at Oxalis’ beginning, when the company hired local people as its main workforce. As the company continues to grow, more local citizens are employed in a range of positions: sales executives, operations team members, accountants, tour guides, kitchen and hotel staff, and within the backbone of the organization— the porter team. Also as the company has grown, Oxalis attracted many travelers to the region as Phong Nha became a tourism hotspot. This in turn has created many business opportunities for local people (both directly with those we partner with, and indirectly with those businesses whom our customers give their patronage to while here).

Integrity in business is also an important factor in economical sustainability. Oxalis is committed to transparency, ethics, and working in compliance with local laws regarding taxes and government policies. Oxalis uses an auditing assurance service from PricewaterhouseCoppers Vietnam Ltd to verify its accounting system. Finally, Oxalis is dedicated to social accountability and all Oxalis employees are entitled to all legal benefits, respect of local law in terms of wage, insurance and labor relation. Oxalis pledges to always find the best ways to protect the health, safety, and fundamental rights of their staff.


Environmental conservation and sustainable environmental practices are visible on any Oxalis tour, where it’s easy to see the way that Oxalis takes care of the local environment, including the caves and surrounding jungle. 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 every tour that runs within the national park to ensure that Oxalis is doing a good job of protecting the park. Everything that is brought into the jungle or caves is also brought out, with no permanent infrastructure built on any part of the tours. Composting toilets are set up at campsites to protect the jungle and waterways from raw waste. Regular environmental impact assessments are conducted in which water quality is tested to make sure that there are no negative impacts to the surrounding rivers. Tours are closed for several months each year for the jungle and caves to “rest”.

The environment is also conserved in an indirect manner since many employees of Oxalis had families who were once involved in logging or hunting; now that they have a stable income due to Oxalis, they no longer need to be involved in these environmentally detrimental industries.

Social/ Cultural

Sustainability within the social/cultural context is most noticeable through the Oxalis Foundation. The Oxalis Foundation has created several projects since its creation in 2014. These include providing financial support to local homestays, providing training assistance to local businesses, providing scholarships, helping build schools, fixing up a local library, 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!