Caving in the ultimate underground world of Hang Va cave in Vietnam!

Hang Va is undoubtedly one of the most beautiful underground caves on our planet!”

~ Researchers and caving experts

Caving is one of the most adrenaline pumping and amazing adventure activities in the world and you’ll have the time of your life when you go caving under the surface of the Earth in one of Vietnam’s top cavesHang Va! This miraculous cavein Vietnam is known to have the rarest, most unique and extraordinary rock formations ever seen in the world. The calcite cones known as tower cones inside this cave are known to be extremely incredible for photography enthusiasts and the formations keep changing as you venture deeper into the cave.

This cave is considered by researchers, travellers and cavers to be one of the most beautiful underground caves on our planet and swimming inside the passage of the Hang Va is an experience you’ll cherish forever. On the Hang Va Expedition, you will also get to explore the Nuoc Nut cave which is yet another gorgeous cave hidden underneath the ground of the Phong Nha – Ke Bang National Park.

Book your Hang Va Adventure here:

– Deep in the heart of the wilderness –

The Phong Nha – Ke Bang National Park in the Quang Binh province of Vietnam is huge and is home to some of the world’s most amazing and largest underground caves, with Hang Va being one of the most special ones besides the world’s largest cave – Hang Son Doong and the third largest cave in the world – Hang En.

Hang Va is an exceptional river cave and is based deep inside the Phong Nha – Ke Bang National Park; this means you will have your fair share of jungle trekking, river crossing, scrambling and more to get to the cave. If you enjoy the outdoors and trekking, you will certainly enjoy trekking through one of the world’s top natural world heritage sites, Phong Nha – Ke Bang National Park, will have you surrounded by massive biodiversity. Don’t worry, the Oxalis Adventure team will make sure to keep you safe from any kind of contingencies while out in the wild.

Hang Va Trails 2

Photo: Ryan Deboodt

Phong Nha Cave 4
Nuoc Nut Cave (Ryan Deboodt)

Photo: Ryan Deboodt

Phong Nha Ke Bang
Inside Hang Va (Oxalis Adventure)

Once you are done with your brief and thrilling exploration of the Nuoc Nut cave on day one, you will feel your excitement growing about what’s to come as you venture into Hang Va the next day!

– Formations that redefine rarity –

Adventurers will enter Hang Va by ascending with the help of safety equipment and ropes, you will be blown away by the immaculate and extraordinary formations inside the cave, including the tower cones that are seen spread across an entire passage that reaches a width of about 85m.

There are more than a hundred calcite cones rising from the Earth in rather mysterious ways, these tower cones inside Hang Va are all very steep, and they reach heights of around 2m each. Many of the tops are at the same level, which is the same as the water level in the gour pool before it dried out. They are coated in soft mud, but this is generally only a few millimeters thick over the calcite. When washed clean of the mud, the cones reveal a complicated structure.

hang va 2

Photo: Ryan Deboodt

Formations in Hang Va (Ryan Deboodt)

Photo: Ryan Deboodt


Photo: Ryan Deboodt


A striking feature of the tower cones in Hang Va, and those in many other caves, is the external layer of calcite that gives them a knobbly appearance and also hides any structure remaining from the original piles of rafts. There is some uncertainty in exactly how these cones have formed; their characteristics are comparable with some features of cones, recorded in other caves, that are either raft cones or geysermites, but many different processes have created their present structure, making them incredibly unique and an unforgettable sight for travelers visiting Hang Va!

– Caving in Hang Va – An adrenaline rush like no other! –

When the members of the British Caving Research Association first explored the Hang Va cave, they called it one of the most beautiful river caves they had ever seen throughout their caving expeditions across the world.

Caving in Hang Va will see you squeeze through some tight spots, wade and swim through a crystal clear river inside the cave, do some bouldering and traverse some technical sections using a ropes and other caving equipment! While you’re inside Hang Va, you will find yourself surrounded by colorful cave formations, limestone surfaces and water. The magnificent underground world of Hang Va seems too good to be true and will certainly give you a great rush of adrenaline.


Photo: Ken Koh

Hang Va (Oxalis Adventure) (5)

Photo: Ryan Deboodt


Photo: instagram.com/dogslobber

The activities on the Hang Va Expedition are surely exciting and people who are physically fit with previous trekking or caving experience are bound to have a great time here; it includes 3 KM of caving in river caves, 100 meters cave swimming, 30 meters of crawling through some incredible sections and 20 meters of rope traversing on a wall of limestone.

Rope traversing on the Hang Va Expedition is actually considered to be one of the highlights, as the limestone wall that you traverse on is filled with what seem like small diamonds and it’s truly a special experience. Caving in Hang Va blends thrill and amusement in a fantastic way that every passionate adventurer will truly cherish; being under the surface of Earth and being one with jaw-dropping stalactites, stalagmites and super rare tower cones is only possible with the Hang Va Expedition Phong Nha, Vietnam!

Photo: Ryan Deboodt

Photo: instagram.com/adventurenomad/

– How safe and easy is caving in Hang Va? –

Even if you’re not experienced in caving or rope traversing, don’t you worry; this challenging adventure can be done by absolutely anyone that is physically active and has previous trekking experience.

Your journey to, inside and out of Hang Va will be dedicatedly taken care of by locally based tour operator, Oxalis Adventure, which is arguably the biggest adventure tour operator in Asia, as it conducts unique and large scale adventure tours in really remote areas of the Phong Nha – Ke Bang National Park and to some of the largest caves on our planet in the safest and most professional way. Just like on other cave expeditions offered by Oxalis, you will be provided with top notch caving equipment on the Hang Va Expedition. All the team members of Oxalis that will accompany you on the adventurous journey are thoroughly experienced and trained individuals who will ensure your safety through and through.

For swimming inside the cave, you will be putting on life jackets to have more buoyancy and confidence in the water. Besides that, you will be provided with caving equipment like Petzl helmets and Hope Technology 1500 lumen head lamps to be able to see and admire the numerous wonders inside the cave. Caving gloves to make sure you don’t get any scratches while caving and get better grip would also be used. While rope traversing, the tour guides and safety assistants will help you put on a harness, will properly instruct you on how and when to make use of the karabiners and will always be standing close after checking the rope system to ensure full safety and give out instructions whenever required by you. All the tour guides and safety assistants have been meticulously trained by cave experts from the British Cave Research Association and through the years have gained trust as being some of the most professional accompanying tour staff that travelers have ever come across.

If adventure is your thing and you consider yourself a nature lover, exploring and caving in Hang Va will surely go down as one of the greatest experiences of your life!

Still not sure which tour would suit you best? Check out How to select the right Oxalis adventure to get more clarity and if you’re a trekking enthusiast, be sure to have a look at Phong Nha: Best trekking adventures in Asia!

Book your Hang Va 2-Day Adventure here:

Oxalis Adventure Tours


If you are seeking a taste of the caves and really don’t have enough time then we recommend a one-day cave and jungle trek. We currently have three tour options for you to select, each with a slightly different style and suitability.

• Phong Nha National Park 1-DayOur family adventure in the Phong Nha offers a great taste of untouched jungle and impressive wild caves. It is the easiest level of adventure but there is still 5km of trekking and 2km of caving, and optional swimming during warmer weather into one cave. It’s suitable for kids from 12 and above with good fitness, and so this makes for a great day for everyone! It costs VND 1,650,000 per person (USD 72).

• Tu Lan Experience – 1 DayThis is one of our original one-day tours and still one of the best adventures in Vietnam. This one-day tour includes rock scrambling, 50m swimming through a wild river-cave, and up to 9 km of trekking through the lush jungles. You will also strap yourself in for a 15m descent down a ladder. It costs VND 1,800,000 (USD 78) per person.

• Hang Tien Discovery – 1 DayThis one-day tour is perfect for trekking enthusiasts eager to see the largest cave of Tu Lan but without time for the two-day experience. Hang Tien is a dry cave so no swimming required, but still includes up to 4km of trekking through mostly flat jungle and about 500m exploring this incredible cave that will no doubt impress with its grandeur. It costs VND 2,000,000 per person (USD 87).


Our most popular cave adventures start from two-days providing an immersive jungle and caving adventure, each targeting a slightly different kind of adventure-seeker, or perfect for those who want to combine a couple of tours to see different caves and areas on one trip to Phong Nha.

• Tu Lan Cave Encounter – 2 DaysOur most popular tour exploring the famous jungle area of Tu Lan. On this overnight camping excursion, you will trek through a number of different dry caves, swim up to 500m through a couple of river caves, witness outstanding cascading waterfalls underground as featured in National Geographic, and spend the night at our jungle camp beside a gorgeous waterfall. It includes 12km of trekking and 3km of caving in total and is for those with a good adventurous spirit. It costs VND 5,500,000 per person (USD 239).

• Hang En Cave Adventure – 2 DaysFor two days, this is our best-value-for-money tour that includes one of the most jaw-dropping natural landscapes you will see in this lifetime. This cave is considered the second largest cave in Vietnam and third largest in the World, and it also makes up one night of the original five-day Son Doong Cave Expedition being so close to the largest cave in the world. It includes visiting Ban Doong Ethnic Village, located in the jungle, and a magnificent campsite on a sandy beach inside the cave. It includes 22km of jungle trekking at times quite rocky, multiple knee-deep river crossings, and elevation change of 400m (the ‘hill’ you won’t forget), and 4km of caving. This is a level 3 adventure on a scale of 1 to 6. It costs VND 7,600,000 per person (USD 330).

• Hang Tien Endeavor – 2 DaysA two-day trek into the jungle to see the largest dry cave of the Tu Lan area, exploring 5.5km of this truly stunning cave, with a variety of karst formations. This 13km trek is suitable for those not too keen on cave swimming or too many hills, but still up for an adventure. This is a level 4 adventure between 1 and 6, with 6 being the most challenging. It costs VND 6,500,000 per person (USD 283).

• Hang Va Expedition – 2 DaysA technically challenging, but equally rewarding two-day caving adventure in the heart of Phong Nha National Park. This tour takes you deep into the jungle to one of the most spectacular river-caves, with formations not seen anywhere else in the world! It involves rock scrambling, wading through an underground river, bouldering and rope-traversing within the cave, to reach the rarest tower cone formations. This involves quite a lot of technical work due to safety, but is not overly difficult, it includes 10km of trekking and 3 km of caving.  This is a level 4 adventure, with 6 being the highest. It costs VND 8,000,000 per person (USD 348).


Now, if you really want to increase the adventure and soak up the wild jungle of Vietnam, with plenty of time to relax and enjoy the area, we highly recommend a three-day caving tour of our Tu Lan or Hang Tien.

• Wild Tu Lan Cave Explorer – 3 DaysThis tour incorporates the very best of Tu Lan with two different jungle campsites besides stunning waterfalls, 3km of cave exploring through a number of caves, 1km of cave swimming and visiting some additional areas not included on our shorter experiences. Our three-day tour is very popular and tends to be booked out so get in quick to enjoy this thrilling jungle adventure. It includes 17 km of jungle trekking and with quite a bit of swimming you will need to have a good level of fitness. It is not for the faint-hearted, but still only considered level 3 adventure level compared to level 4 of the Hang Tien 3-day tour. It costs VND 8,000,000 per person (USD 348).

• Hang Tien Exploration – 3 DaysThis three-day tour stands out for combining a taste of Tu Lan with some river cave swimming, before crossing a mountain range to reach the valley for Hang Tien – the most astounding dry caves in the region, where you will enjoy trekking, bouldering over various rocky terrains to witnessing breathtaking patterned calcite walls & ceilings of Hang Tien. It’s challenging and definitely more suited to adventure enthusiasts who have trekking experience and prefer more challenging routes. It includes a total of 22km of trekking, 6.5 km of caving and an elevation change of 150m over one particular hillside. You will get wet, you will be challenged, but you will not be disappointed. Hang Tien is located adjacent to the Tu Lan area so you will enjoy the best of both worlds – a level 4 adventure out of 6 adventure levels. It costs VND 8,500,000 per person (USD 370).


For those looking for the ultimate adventure experience in Vietnam, and thriving for the real grand expedition of the world, you should opt for these 4-day journeys to explore the entire cave system of Tu Lan and the largest cave on Earth

• Tu Lan Expedition – 4 DaysYou will also explore all of the extraordinary caves in Tu Lan, including Kim Cave and Secret Cave that boasts phenomenal natural falls and karst formations inside these two unbelievable river caves. Complete a trek through Hang Tien Cave – famed for its vastness and magnificent formations. Our secluded jungle campsites are spectacular and mostly different from those visited on our shorter treks in the same region. This is a perfect alternative expedition for those who are unable to do Son Doong Expedition, still it’s challenging and not recommended for those without experience. It includes an additional night at Chay Lap Farmstay before the tour to ensure you are well rested and ready to depart early the following day. Level 5 on our 6 adventure levels. It includes 30km of jungle trekking, 5 km of caving, about 800m swimming through caves and one abseil in a cave in the pitch black – highly adventurous! It costs VND 15,000,000 per person (USD 652).

• Son Doong Expedition – 4 DaysBy now you would have seen some pictures of Son Doong Cave, and even they don’t do it justice. The record-breaking Son Doong Cave is hands-down one of the most stunning places on this planet Earth. The expedition is tough, but not too difficult so long as you have a strong resolve to achieve. It is surely one of the newest wonders of the world. Son Doong is not just another cave tour – it is life-changing to say the least. It includes 25km of trekking, 9 km caving including rope climbs, and the 90m ascent of the Great Wall of Vietnam using a ladder, elevation change of 400m and many river crossings inside and outside the cave. Level 6 on our adventure levels. It costs VND 69,800,000 per person (USD 3000).

STILL HAVE QUESTIONS?  Visit our FAQs section where we have a lot of answers for your questions and concerns. https://oxalis.com.vn/faq-general/

WANT TO SEE VIDEOS OF OUR TOURS? Visit our youtube channel at https://www.youtube.com/user/OxalisAdventurTours

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