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We provide the best jungle & cave adventure tours in Phong Nha.

Oxalis Adventure conducts top notch 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, the Hang Va Cave, Nuoc Nut Cave and the nearby cave system called Tu Lan Cave System owning some of the top caves in Vietnam. Oxalis is the first adventure caving company in Vietnam and still offers the highest quality tours available in the Phong Nha – Ke Bang National Park, Quang Binh Province, Central Vietnam. All tours are carefully designed, and tour guides trained by the expert cavers with many years experiences from the British Caving Research Association.

Choose your best adventure

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.

Team building

Team-building tours are a fantastic gateway into the jungle.


Safety is top priority in all Oxalis business activities, we employ the leading cave safety experts from UK to ensure safety of our tours.

Meet our team

Oxalis Adventure currently employs over 500 locals from Phong Nha, of which many used to be illegal loggers and hunters in the National Park. They now work as porters, chefs, safety assistants and tour guides at Oxalis. With the support on technical training, safety training and knowledge from cave experts of the British Cave and Research Association (BCRA), we pride ourselves in constantly building the best adventure team in Phong Nha.

Technical Director

Howard Limbert

Howard is a globally renowned cave expert, a member of the British Cave Research Association (BCRA). He has been exploring caves in the Phong Nha National Park for 30 years.
Tour Guide

Hồ Trung Hiếu

Like his father, Hieu joined Oxalis and through years of perseverance as a Son Doong safety assistant, he became a great tour guide who continues to inspire the local youth.
Adventure Consultant

Ngân Nguyễn

Ngân (Stefanie) is one of the most promising adventure consultants at Oxalis. Her wonderful people skills and dynamic personality bring the best support to adventurers.
Guide Assistant

Nguyễn Văn Định

Started as a porter at Oxalis in 2013, after many safety training courses and dedication, Định became a guide assistant for Hang Va tours. You’re always in safe with this lovely guy.