1. Overview of Hang Va Cave

1.1. Location

Hang Va Cave is located deep within the core zone of Phong Nha - Ke Bang National Park in Quang Tri Province (formerly Quang Binh Province). It is hidden in a jungle, just over 50 meters behind the back entrance of Son Doong Cave - the largest cave in the world. To reach Hang Va Cave, tourists must trek more than 4 kilometers from kilometer 28 of the western branch of the Ho Chi Minh Trail.

1.2. Discovery

Hang Va Cave was first discovered by a local named Ho Khanh during a jungle trip in 1992. Later, it was officially surveyed by the British-Vietnamese Cave Expedition Team in 2012. The cave was named after the ancient "Va Forest" area nearby.

Geological surveys found that Hang Va shares an underground water source with Nuoc Nut Cave and is linked to it by a 150-meter dry passage, confirming that both caves lie on the same fault line. Experts also believe a narrow passage in Hang Va Cave may connect to the Passchendaele corridor in Son Doong Cave, underscoring its unique role in the Phong Nha - Ke Bang cave system.

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2. Things to explore during Hang Va Cave expeditions

2.1. Majestic stalactites

Hang Va Cave is considered a young cave, estimated to be between two and three million years old. Stretching 1.7 kilometers, it features one of the most unique stalactite systems found within Phong Nha - Ke Bang National Park. Inside, tourists can admire around one thousand cone-shaped stalagmites, all remarkably uniform in size. They were formed over thousands of years through mineral deposition. Most of them have steep sides and can reach a height of up to two meters. Flowstone formations line the water passage, showcasing intricate patterns that enhance the cave’s distinctive beauty.

2.2. Flora and fauna

Shaped by the ecological diversity of Phong Nha - Ke Bang National Park, Hang Va Cave features remarkably varied vegetation. Here, Hang Va Valley is a narrow, low-lying area nestled among densely forested limestone mountains. These towering cliffs are blanketed in plant species characteristic of ancient primary forests. Due to the valley's limited sunlight, most of the trees grow tall and slender, reaching upward in search of light. Around the base of the limestone slopes, scattered shrubs add to the diversity of the landscape.

The rich plant life in Hang Va Cave creates a thriving habitat for wildlife. Near the campsite, tourists may come across flying squirrels, civets, birds, and snakes. The limestone cliffs are frequently visited by primates such as macaques, doucs, and the rare red-shanked douc langur. In the nearby Khe Van Valley, wild boars and mountain goats have also been observed.

2.3. Hidden waterfalls

For those who are passionate about geology, Hang Va Cave offers a truly surreal visual experience. After the rainy season, rainwater slowly seeps into the ground. It travels through underground streams and enters the cave through cracks in the rock. This natural flow forms beautiful waterfalls deep within the cave. It is hard to imagine that hidden beneath the surface lies a breathtaking series of cascading waterfalls. Tourists may even bathe under these underground waterfalls. The cave also features multiple underground lakes, creating a uniquely beautiful landscape.

2.4. Nuoc Nut Cave

Connected to Hang Va Cave is Nuoc Nut Cave, a 2.2-kilometer-long underground wet cave estimated to be around two million years old. Tourists should include both these two caves in one journey to fully appreciate the beauty of the interconnected cave system within the national park.

First discovered in 2003, Nuoc Nut Cave features a dry, narrow entrance that leads into a vast chamber. Inside, tourists will be amazed by stunning stalactites and stalagmites, including towering stone columns that rise to the ceiling and glittering rimstone formations. The widest section of the cave spans up to 50 meters, with a shallow stream flowing through its center. This underground river winds continuously through the cave, splitting into several smaller branches before ending in an emerald pool that drains into a hidden valley beyond.

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3. How to get to Hang Va Cave?

3.1. From Dong Hoi

From Dong Hoi, tourists can reach Hang Va Cave by following this route: Start on National Road 1A heading north, then turn west onto National Road 16 toward Phong Nha Ward. Continue until you reach Phong Nha - Ke Bang National Park, then follow Provincial Road 20 (DT20). This road will lead you to the western branch of the Ho Chi Minh Trail. From there, continue a short distance to reach the starting point of the trekking journey to Hang Va Cave.

3.2. From Phong Nha

From Phong Nha Ward, tourists can reach Hang Va Cave by heading northwest along Provincial Road 20 (DT20), which connects to the western branch of the Ho Chi Minh Trail. The access point to Hang Va Cave lies nearby, where tourists begin their trekking journey deep into the jungle to explore this underground marvel.

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4. Things to know about Hang Va Cave tours

4.1. General information

Oxalis Adventure is the only company licensed by the local authority to operate exploration tours in Hang Va Cave. Since 2016, Oxalis Adventure has held exclusive rights to conduct these tours. Their Hang Va Cave expeditions are available annually from February to August, with a limited number of only 700 - 800 tourists per season. Tours are not operated during the remaining months due to heavy rain and flooding.

Below is a detailed overview of the Hang Va Cave tour:

Duration: 2 days
- Adventure level: Moderat
- Age: 16 - 70
- Carbon footprint (as of 2023): 153.5 kg of CO2e per tourist
- Price: 8,300,000 VND (~US$346) per pax
- Included: 1 guide per 10 tourists, 3 safety assistants, safety gear, insurance

Itinerary:
- Day 1 begins with pick-up, safety briefing, and gear check before trekking through the forest to Nuoc Nut Cave. After lunch, tourists explore Hang Va Cave with headlamps, swim through subterranean rivers, and admire striking stalactites. The day ends with a campsite dinner.
- Day 2 features deeper cave exploration with guided descents into Hang Va Cave, showcasing waterfalls, rimstone pools, and cone-shaped stalagmites. After lunch, tourists hike over Tai Meo Mountain, cross the valley, and return to Phong Nha.

4.2. Requirements

This adventure includes forest trekking, river crossing, and cave exploration, with an overnight stay at a jungle campsite. Participants must be in good physical health. While prior trekking experience is helpful, it is not required.

Tourists should be able to jog 3 kilometers in 30 minutes and climb 5 flights of stairs without difficulty. The tour is best suited for those who regularly engage in physical activities such as walking or swimming.

The expedition involves moderate challenges, including scrambling over rocks, crawling through narrow passages, and navigating rope-assisted sections. For safety, the guides may discontinue a participant’s journey if they cannot meet the physical demands on Day 1. In such cases, no refunds or rescheduling will be offered.

4.3. Essentials

Bringing the right gear is essential for safety and comfort in both jungle and cave conditions. Below is a list of must-haves for all participants.

Clothing

For trekking
- 1-2 long-sleeve, quick-dry hiking shirts
- 1-2 pairs of long, quick-dry hiking pants
- 1 lightweight windbreaker (recommended from January to March)
For the campsite
- In cool months (January - March): long pants, a thermal top, and a jacket
- In warm months (April - August): shorts and a T-shirt

Footwear

1 pair of trekking shoes with good grip and drainage
2 pairs of thick, high socks (preferably knee-high)
1 pair of sandals for use at the campsite
Note: Dresses, skirts, and decorative clothing are not suitable for this tour.

Personal items

Sunglasses, a hat, sunscreen, and a handheld fan (especially from April to August)
Insect repellent
A medium-sized towel
Personal hygiene items (toothbrush, toothpaste, shampoo, and body wash - preferably biodegradable)
Undergarments
A power bank
A passport
Any personal medication
Foot powder or baby powder to keep feet dry

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5.1. Is Hang Va Cave open year-round?

No, Hang Va Cave is not open year-round. Tours are available only from January to August for safety reasons.

5.2. How challenging is the Hang Va Cave expedition?

The Hang Va Cave tour is rated Level 3 in difficulty, which indicates a moderate challenge. The journey involves the use of ropes and safety harnesses as participants trek through underground streams, navigate rocky terrain, and maneuver through narrow passages.

5.3. Can I explore Hang Va Cave without a guide?

No. Hang Va Cave exploration is only allowed with the licensed tour operator Oxalis Adventure.

5.4. Is there an age limit for the Hang Va Cave tour?

Yes, participants must be between 16 and 70 years old to join the expedition.

5.5. Are tourists allowed to swim in the cave pools?

Yes, tourists are allowed to swim in the underground river and pools under the supervision of safety experts.

5.6. Are meals included in the tour?

Meals are provided based on a fixed menu, with adjustments available for vegetarian or other dietary restrictions upon request.

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Proper preparation ensures that your journey through Hang Va Cave is safe, rewarding, and memorable. Whether you're drawn by the stunning stalactite formations, the excitement of venturing into the unknown, or the desire to reconnect with nature, this hidden gem in Vietnam delivers a one-of-a-kind experience. Step into a subterranean world of wonder and uncover one of the country’s most extraordinary natural marvels!

After your cave expedition, you can enhance your Vietnam travel by exploring other iconic destinations such as Ha Long Bay, Da Nang, Hoi An, Nha Trang, and Phu Quoc. To elevate your trip in these destinations, make sure to discover Vinpearl - Vietnam’s leading hospitality brand. Vinpearl offers tourists a luxurious stay with elegant rooms, premium services, and beachfront locations, perfect for relaxing after every adventure.

For added excitement, head to VinWonders, a chain of entertainment complexes packed with roller coasters, water slides, and immersive activities suitable for all ages.