Oxalis is unquestionably the expert in caving and trekking expeditions, and is the only outfit licensed to conduct tours to Hang Son Doong. Staff are all fluent English-speakers, and trained by world-renowned British cavers Howard and Deb Limbert. All excursions, from day trips to Tu Lan Cave to four-night/three-day expeditions to the world's largest cave, are meticulously planned and employ local guides and porters.
You can discuss trips at Oxalis' riverside Expedition Cafe.
Pre-booking Son Doong for the following year is essential and, if possible, booking a few months ahead for expeditions in Tu Lan and Hang En is recommended to avoid disappointment. Consult the calendar on the excellent website and search for available slots.
