Hang Nuoc Nut
Hang Nước Nứt
A gentle 1-day swim into a hidden cave river, the quiet cousin of Hang Va. The overnight camp is now part of the Hang Va expedition.
- Price from
- $84 (2.150.000 ₫)
- Duration
- 1 day
- Difficulty
- Moderate
- Season
- January to August
- How to visit
- Guided tour · Oxalis
around $84 for 1 day; the overnight Nuoc Nut camp is now part of the Hang Va expedition. Prices checked June 2026, refreshed quarterly.
Last visited: June 2026
Is it worth it?
A lovely, cheap day cave for a real swim without committing to a camp. The overnight now comes via the Hang Va expedition.
How to visit
Hang Nuoc Nut is a guided trip only, run by Oxalis. Book ahead, especially in peak season, and check the latest dates and price before you commit.
The short answer on Hang Nuoc Nut
Here is the change you came to check: Oxalis no longer sells a standalone overnight at Hang Nuoc Nut. The camping-at-the-cave version got folded into the Hang Va Expedition. So you now have two honest choices. Do the 1-day Nuoc Nut Cave Discovery, a gentle day trip into a river cave with a swim, for around $84 (2,150,000 VND, prices checked June 2026). Or get Nuoc Nut as the overnight half of the Hang Va Expedition, 2 days and 1 night, around $346 (9,200,000 VND, prices checked June 2026), where you trek in and camp at Nuoc Nut on night one before reaching Hang Va's tower-cone chamber on day two.
Both are Oxalis, the only licensed operator for these caves. If you just want to see Nuoc Nut and get a real swim into a cave river without committing to a camp, the day trip is the easy, cheap yes. If you wanted the jungle camp and the bigger adventure, the Hang Va Expedition is now the way you get it, and you get a far stranger cave on the second day as a bonus.
The 1-day Nuoc Nut Cave Discovery tour
The standalone product today is a single day. Oxalis picks you up in Phong Nha in the morning, drives you to the trailhead, and you walk a short stretch of jungle to the cave. You change into a wetsuit and a helmet with a headlamp, swim and wade into Hang Nuoc Nut, scramble over sand and rock in the dry sections, and come back out the same day. No tent, no overnight, back in town by evening.
At around $84 (2,150,000 VND, prices checked June 2026) this is one of the cheaper guided caves Oxalis runs, and it punches above the price. You still get the proper kit, the safety setup, and the swim into a real river passage rather than a lit boardwalk. It is a good half-serious cave day for people who do not want a multi-day trek but want more than a tourist walk-through. Bring a swimmer's confidence and you will get plenty out of it.
The Hang Va Expedition: how to get the Nuoc Nut overnight now
If the camp was the part you wanted, you book the Hang Va Expedition. It is 2 days and 1 night, around $346 (9,200,000 VND, prices checked June 2026), Oxalis. Day one is a jungle trek in to the camp pitched at Nuoc Nut, where you sleep at the cave the way the old standalone trip used to do it. Day two you push on to Hang Va itself.
So the Nuoc Nut night did not disappear, it just got attached to a better cave. You are paying more than the old standalone overnight cost, but you are also getting Hang Va on the second day, and that is the rarer half. If you are choosing between a quiet cave camp and a quiet cave camp plus one of the strangest chambers on earth, the math is not hard.
What Hang Va adds on day two
Hang Va is the reason the expedition exists. Inside, hundreds of cone-shaped tower stalagmites grow straight out of shallow turquoise gour pools, a calcite formation that almost nowhere else on the planet shows in this density. You wade and swim through cold sections to reach it, and the guides clip you into ropes for the descent into the pool chamber. It is more technical than Nuoc Nut and it is the photo people remember from this corner of the park.
Rated challenging rather than moderate, Va asks for a bit more from you than the day trip does. But you are not doing it cold. You will have had the night at Nuoc Nut and the trek in first, so by the time you reach the tower cones you are warmed into the rhythm of it.
What the cave is actually like
Nuoc Nut is a river cave, and the water is the whole point. You float and swim into dark passages on your back with a headlamp on, push through clear blue pools, and pass an in-cave waterfall that makes the obvious photo. There are dry chambers too, where you scramble over sand and rock, and a few short climbing bits where a guide puts you in a harness. This is hands-on caving, not a viewing platform.
It sits in the same quiet patch of limestone jungle as Hang Va, a barely-visited corner of the park while the crowds funnel toward Hang En and Son Doong. The water runs cool, which the wetsuit handles, and in the summer heat that cold cave river stops being a complaint and turns into the best part of the day. You should be a confident swimmer. If putting your face near dark water makes you nervous, this is not the cave for you, and a dry cave or a Tu Lan day trip is the better call.
When to go
The season runs January to August for both the day trip and the Hang Va Expedition. These are river caves, so once the rains arrive and water levels rise the swim passages flood and the caves close for safety. By September dates get scarce and the window is shutting, so the practical run is the dry stretch from late winter through summer.
Early in the season the water is colder, which is what the wetsuit is for. Peak months are also peak heat above ground, so plan for that and build a buffer day into your Phong Nha stay in case weather shifts a departure. The day trip is easier to slot in late because it does not depend on camp logistics, but do not count on either running outside the season.
Bookable overnight alternatives if you want a camp
If the camp mattered more than Nuoc Nut specifically, and the Hang Va price is steeper than you want, there are two other overnights worth naming. Hang En is the one most people pick, around $333 (prices checked June 2026), Oxalis, where you sleep on a beach inside the world's third-largest cave and wake to swifts pouring out at sunrise. It books out fast from March through August, so dates are the catch.
Hang Pygmy is the other strong option, around $310 (prices checked June 2026), run by Jungle Boss rather than Oxalis. You camp deep inside one of the planet's biggest caves with abseiling and an underground river, and it is the smart Son Doong alternative you can actually get onto without a multi-year wait. Between those two and the Hang Va Expedition, you have three real overnight cave camps to choose from.
How to book
For both the 1-day Nuoc Nut Cave Discovery and the Hang Va Expedition, Oxalis is the only licensed operator, so you book direct on their official site. The day trip runs around $84 (2,150,000 VND, prices checked June 2026). The Hang Va Expedition, which now includes the Nuoc Nut camp, runs around $346 (9,200,000 VND, prices checked June 2026). Reserve the dates you want rather than walking in, since group sizes are small and the popular weeks still fill.
The price covers pickup, meals, guides, porters, and the safety kit including the wetsuit, helmet, and harness. You mostly need to turn up able to walk and, for Nuoc Nut, swim. If your real goal was the old standalone camp at Nuoc Nut, the honest answer is that it is gone, and the Hang Va Expedition is where that night lives now.
Common questions
What is Hang Nuoc Nut?
A river cave in the same area as Hang Va. The standalone trip is now a 1-day swim with Oxalis; the overnight camp at Nuoc Nut moved into the Hang Va expedition. Small groups and a proper swim into the cave system either way.
Is Hang Nuoc Nut harder than Hang En?
About the same. A bit more swimming, less famous, smaller groups. A good answer when Hang En is sold out on your dates.
Should I do the 1-day Nuoc Nut trip or the Hang Va overnight?
Pick the 1-day Nuoc Nut Cave Discovery (around $84 / 2,150,000 VND) if you want a real cave swim without committing to a camp, back in town by evening. Pick the Hang Va Expedition (2 days, 1 night, around $346 / 9,200,000 VND) if you want the jungle camp at Nuoc Nut plus the tower-cone chamber at Hang Va on day two. The old standalone Nuoc Nut overnight no longer exists, so the expedition is now the only way to sleep at the cave. Prices checked June 2026.
How much swimming is there, and do I need to be a strong swimmer?
A fair bit. This is a river cave, so you float and swim into dark passages on your back with a headlamp, push through pools, and pass an in-cave waterfall, with dry scrambles in between. The wetsuit and life jacket keep you up, so you do not need to be fast, but you do need to be comfortable putting your face near dark water. If that makes you nervous, a dry cave like Paradise or a Tu Lan day trip is the better call.
Getting here
How to reach the caves
Phong Nha town (Son Trach) is the base for every cave. Here's the run from the most common starting points.
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