Hang Va contains some of the world’s rarest and most incredible formations – numerous tower cones rising up from emerald green waters. Nuoc Nut is an adventurous underground passage with dry and wet passages and clear blue pools. This tour combines them both and is for adventurous travelers who want to experience two contrasting caves, rope traverse, and sleep in a jungle campsite. The experience is particularly rewarding for photographers.

  • Explore two of the most interesting caves in the national park.
  • Marvel at otherworldly cave formations – a real highlight!
  • Harness up for the rope traverse.
  • Trek up jungle hills and climb over sharp rocks.
  • Swim in gorgeous natural jade lakes inside the caves.
  • Sleep deep in the jungle surrounded by trees.
  • Tuck into freshly cooked meals during the journey, plus snacks.

Key Information

  • Duration: 4 days 3 nights (includes 2 nights stay at hotels in Phong Nha)
  • Tour code: HV2
  • Two days exploring, one-night camping
  • Available January to August. Tours depart five times a week
  • Difficulty: Level 4 · Challenging
  • Group size: 10 people maximum
  • Age: 16 years and above
  • Distance: 8km trekking, 7km caving, 150m elevation gain, 50-100m cave swimming, 20m rope work


Due to the weather conditions, the itinerary may need to be changed at short notice. The paths can be muddy and slippery after rain.

Day 1: Arrival date in Phong Nha

After arriving in Dong Hoi City by plane/bus/train, you can transfer to hotel in Phong Nha area by taxi (see Arrival Departure Guide here). Don't miss the opportunity to cycle along the rustic countryside. At night, you can enjoy local dishes at Restaurant (at your own expense) and rest early for a long journey awaits tomorrow.

Day 2: Nuoc Nut Cave - Hang Va Jungle Campsite

On departure day, our tour bus will pick you up in the morning from hotel to the Oxalis office. Here you will have a tour safety briefing, sign the release form, and receive the required equipment for the tour.

The route starts with a short steep drop down from the road to the valley floor.

A nice easy half-hour trek in the forest brings you to a dry rocky stream. Follow the rocky path carefully to climb down over boulders to the Nuoc Nut Cave entrance. Enjoy a picnic lunch and then with your caving light and helmet enter into the darkness. Initially quite small, the cave soon opens up into impressive dimensions. Plenty of stalactites and stalagmites can be seen on the way. After a rocky section, you will meet the underground river. Follow this to the point it enters the water-filled passage. Take the passage connecting to Hang Va on the return and join in activities such as scramble through narrow passages, admiring unique stalactites. Another 100m of swimming with a lifejacket and guideline leads to a climbing point. Harnesses will be used to climb out of the entrance to the camp. Enjoy dinner served by your team, and the experience of a night deep in the jungle.

Day 3: Hang Va Cave - Phong Nha

The following morning you will have a safety briefing on how to use the harnesses and ropes.

You will then descend the steep rocky entrance using the equipment. Hang Va is a beautiful stream cave where you will experience narrow passages, rocky climbs, and some deep pools with very nice opportunities for photography. After exploring the river passage, you will use your harnesses and traverse across to the high-level passage using the ropes. Follow the path up into this large dry passage. Notice the huge gour dams as you climb over to finally reach the amazing tower cone formations. As yet no one knows exactly how these have formed. Return the same way to camp for lunch. Trek out through the jungle over a rocky hill to another stream valley, and back to the road. Enjoy a cold drink.

You will be transferred to Chay Lap Farmstay to take a shower and enjoy a gala dinner. After check-in, you can take advantage of Chay Lap's spa facilities, such as a footbath, herbal sauna or massage to restore your health after a long journey.

Day 4: Departure

Enjoy breakfast at the hotel, take a swim in the pool at Chay Lap or enjoy Chay Lap Riverside before leaving. Please contact our adventure consultant and inform your tour guide of your departure time the night before to arrange a transfer. We wish you all the best in your onward travels!

It would be great if you have time to explore the beautiful Phong Nha. You will be blown away by the remarkable scenery, being surrounded by karst mountains, idyllic green rivers, rustic villages with beautiful local people. There are so many places to go and see (Chay Lap Riverside, Paradise Cave, Phong Nha Cave, Mooc Ecotrail, Dark Cave..); sensational local pubs (Easy Tiger, Moi Moi, Pub with Cold Beer..); motorbike/bike tours through the National Park, Bong Lai Valley. The check-out time of the hotel will be 12:00 regardless of your departure time.

If you are still in the mood for the wild, our one to two-day adventure tours in another marvelous area – Tu Lan Cave System, are highly recommended (see more here). Since the cave system is the home of the Hollywood blockbuster movie Kong: Skull Island, you will have a great experience enjoying the landscape and imagining the legendary King Kong!

Please let us know in advance if you would like additional night(s) at the hotel and we can reserve that for you.

Adventure Level

Hang Va Expedition
Adventure Level 4 · Challenging

Requires: Regular physical activities or sports
Expect: Rocky terrain, long trek or technical rope work

  • Moderate trekking - very rocky terrain
  • 8km of trekking including 7km of caving
  • River crossings
  • Swimming in caves (100m)
  • There will be some rocky terrain, steep hills and several sections using ropes and harnesses.
  • How do I get to Phong Nha?

    If you are arriving from oversea, there are two main international airports connect with Dong Hoi Airport: Noi Bai International Airport (Hanoi Capital) in the north and Tan Son Nhat International Airport (Ho Chi Minh City) in the south. There’re many daily flights connecting between 2 main airports with Dong Hoi Airport. From Dong Hoi airport you can get a taxi to Phong Nha which takes around 45 minutes. You can choose other means of transportation. From Hanoi, Ninh Binh, Hue, Da Nang, Hoi An to Phong Nha by sleeper bus, or to Dong Hoi City by train. If you are planning to our tour once arrived in Phong Nha then please make sure your bus/train arrives before 6:00 am to take your tour on time.

    If your arrival time is too early, please contact us to get a FREE dorm bed at Oxalis Home to have a few hours rest before taking the tour. We have gathered all information regarding arrival and departure in the link below, please check for more details.

  • What is the weather like?

    The weather in Phong Nha is quite mild and divided into 4 main seasons.
    • Mid-November to early March: the weather is quite cold, the temperature ranges from 12-15°C;
    • Mid-March to late June: dry season, quite stable weather, light showers, temperatures in the range of 22-38°C (May to June is usually the peak heat wave, the temperature can rise up to 38 degrees);
    • Mid-July to mid-September: hot season, increased rainfall, temperature ranges from 25-35°C.
    • Mid-September to mid-November: rainy season, usually with prolonged heavy rain, possible flooding.
    Prior 1 day to your arrival to Phong Nha, you can conveniently check the weather forecast and prepare for your trip accordingly, here: accuweather.com
    This website shows an approximately accurate weather forecast of the area.

  • What benefits will I enjoy if I book multiple tours and services with The Oxalis Group?

    The Oxalis Group has four primary members:
    Oxalis Adventure: Asia’s biggest adventure tour operator, conducting jungle and cave tours in the Phong Nha – Ke Bang National Park and Tu Lan Cave System.
    Chay Lap Farmstay & Resort: One of the top accommodations in Vietnam, blending a rustic countryside aura with luxury.
    Son Đoong Bungalow: Based in the prime location of Phong Nha - Ke Bang National Park, Son Doong Bungalow offers unique features of indigenous culture, magnificent landscapes and hospitable locals.

    • You will receive a 10% discount for the second tour and onwards for Oxalis Adventure - Xiều Oxalis.
    • You will enjoy a 10% discount for room at Chay Lap Farmstay.
    • Discount for room bookings at Son Doong Bungalow at just VND 800,000/night (valid until 31/12/2022). Applicable to all guests booking tours with Oxalis Adventure during the tour processing time.

    Our consultant will happily assist you, should you need further details on these benefits.

  • Where would the excess luggage be kept and how much luggage would the porters carry on tour?

    Your luggage will be kept at the offices in Phong Nha and Tan Hoa. For high-value belongings, please inform the staff, so that it can be stored safely in the locker.
    With 1-day tour, guests' items are not too many, so safety assistants can assist guests. In case guests have a lot of items, they will prepare a medium-sized backpack (type 15-20L) and bring it on their own during the journey.
    For 2-3 day tours, guests' equipment used at the camp will be supported by Oxalis porters, the maximum weight is 3kg / person / tour. The daily necessities will be brought by guests, Oxalis provides floating backpacks for visitors to Tu Lan, Hang Tien and Hang Va tours, guests prepare their own medium-sized backpacks (type 15-25L) when participating in Hang En and Son Doong.
    Similar provisions for the Tu Lan 4-day tour, however, luggage used at the camp has a maximum weight of 5kg / person / tour.

  • What if I am a solo traveler, can I join a group?

    Solo travelers are most welcome and make up a large percentage of most groups.

  • Why do I have to sign your Release Form?

    We require customers to sign our Release Form to confirm they accept this is an adventure tour and they have to follow our guide’s instructions and safety rules. Customers also accept they have some responsibilities for their own safety.

  • Which months of the year do you run this tour, and which are the best months to go?

    You can book the tour which departs from February to August. That is also the best time to join in the discovery and enjoy it at its best.


Please visit our FAQ general page to read our specific What to Bring list before departing for Vietnam and your cave expedition.


  • Camping gear: tent, camp light, sleeping bag, mattresses, pillow
  • Caving & safety gear: caving helmet, caving headlight, gloves, harness, ropes
  • Basic canvas trekking boots (only if you do not have your own pair) sizes 36 – 46
  • Biodegradable plastic bag (for clothing and personal belongings)
  • Meals on tour: breakfast, picnic lunch, dinner (Day 2,3); breakfast (Day 4)
  • Professional English-speaking tour guide and safety assistants
  • Porter team to carry all camping gear and prepare all meals
  • Shared dry box for phones and small cameras (Size 20cm x 15cm or 22cm x 20cm; limited availability for larger cameras)
  • Water bottles and water filter (used only by guide and porters)
  • Basic camping facilities with eco-friendly compost toilet using the western toilet seat
  • First Aid Kit and Medical Rescue Equipment (application by guides and porters only)
  • Satellite phone (for emergency use only)

Hang Va Expedition in 2023 will add:

  • 2 nights stay at hotels in Phong Nha
  • Gala dinner at the hotel
  • Transport from Phong Nha - Dong Hoi after the tour


  • 1 long (easy to dry) pants and 1 long-sleeved shirt to wear during the trek (quick-dry)
  • 1 pair of trekking boots/shoes – difficult terrain, good footwear necessary
  • 2 pairs of calf length densely woven socks (not ankle socks!)
  • 1 backpack to hold personal items
  • 1 small towel
  • 1 pair of shorts and T-shirt to wear at the campsite.
  • 1 pair of flip flop (sandals) for the campsite
  • 1 change of clothes for after the tour
  • 1 set of camp clothes (shorts are okay for around camp; please bring a fleece in winter)
  • Personal items: mosquito repellent, sunscreen, sunglasses, hat, camera, underwear, toiletries
  • Thermal jacket and long pants for nightwear (if tour departs from February to March).

Pricing and availability

Please choose your departure date using the calendar below.

  • 2022 and 2023 tours are available for booking, please check calendar box below
  • This tour is operated from Jan to Aug (closed from Sep to Dec).
  • The days in bold are still available
  • This tour price includes: VAT, environmental service fee, entrance fees, travel insurance cost.
  • 10% off for Xiều (returned customer).
  • Check Hang Va Expedition tour 2022, season here: Hang Va Expedition 2022
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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.

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Overnight tours

Multi-day packages