Best Caves for Camping Inside
Cave camping requires a cave large enough to hold a campsite — and an operator with permission to camp inside it. Only a handful of caves in the world tick both boxes for non-expedition visitors.
Hang En, Vietnam
The world's third-largest cave passage. Oxalis runs two-night tours with tents on the internal sand beach. The morning light through the entrance is the trip highlight.
Hang Son Doong, Vietnam
The largest cave passage in the world. Oxalis's 4-day, USD 3,000 tour includes two camps inside the cave near the dolines.
Deer Cave, Malaysia (Mulu)
Visitors do not camp inside Deer Cave itself, but the nearby Mulu caves are reached on expedition tours with cave-mouth or near-cave camping permitted under park supervision.
Tu Lan Caves, Vietnam
Multi-day adventure routes by Oxalis with camping inside several caves in the Phong Nha-Ke Bang periphery.
Hang Pygmy, Vietnam
The fourth-largest cave passage in the world by some measures — included on Oxalis multi-day cave-camping expeditions.
What to expect inside
Constant 21-22°C in tropical caves (cold by sleeping-bag standards but mild for clothing). Total darkness; high humidity; no phone signal. Tents pitched on sand or boardwalks.
Wildlife considerations
Bats overhead, swiftlets nesting in walls, occasional crabs and spiders. None dangerous. Carry food in sealed containers; do not leave trash.
Costs and logistics
Hang En: USD 350-450 / two days. Hang Son Doong: USD 3,000 / four days. Permits sell out months in advance. Oxalis is the gatekeeper for almost all Vietnam cave camping.
See them all in one view
See every cave-camping site on the interactive map.