Zip 400m, kayak quiet bends and coat yourself in mineral-rich cave mud on a long day trip from Hue to Phong Nha. This guided adventure mixes caving, swimming and river play inside Phong Nha-Ke Bang National Park.
More ways to explore the area's outdoor wonders
You step off the minibus onto the limestone-scratch of Phong Nha country: humid air, the Chay River whispering ahead, and a tower where the zip line waits like a dare.
Difficulty
moderate
Duration
12–13 hours
Fitness Level
Moderate fitness: able to walk short uneven trails, swim short distances and climb in/out of boats or riverbanks
Wildlife
History
Dark Cave sits within Phong Nha-Ke Bang National Park, a UNESCO World Heritage area whose karst systems formed over hundreds of millions of years and were central to local livelihoods and wartime movement.
Conservation
Follow guide rules: avoid soaps or sunscreen in river water, don’t remove cave mud or wildlife, and pack out all trash to protect fragile karst and river habitats.
Reserve your spot on the Dark Cave Discovery Tour from Hue: Even Day Departures today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear secure water shoes
Gravel, slippery rock and river swims make closed, grippy water shoes essential for footing on entries and exits.
Bring a dry bag and spare clothes
Tours include towels but a dry bag for phone and a change of clothes makes the return drive comfortable.
Know your swimming ability
You’ll cross river sections and jump from low ziplines—basic swimming competence is required; lifejackets are provided.
Protect the cave environment
Avoid sunscreen and insect repellent before entering the cave and pack out any trash—karst systems are sensitive to pollutants.
Water shoes
Protects feet on slippery riverbanks and rocky cave entrances.
Quick-dry clothing
Dries fast after swims and mud baths and is comfortable on the return drive.
summer
Dry bag or waterproof phone case
Keeps electronics and spare clothes dry during river sections.
Lightweight towel and change of clothes
Necessary for post-activity comfort and hygiene before the drive back to Hue.