Hang Ba Deep Jungle Expedition

This expedition takes you to discover six incredible caves, including Dai Cao Cave, Maze Cave, Hang Ba Cave, Vinh Dai Cave, Light Cave, and Circle Cave. It is the best chance to catch a good view of the Milky Way and the Moon with your own eyes, enjoy the dark skies filled with stars and unpolluted by lights.

Conservation has always been a top priority for Oxalis Adventures. After some research into wildlife tours, Hang Ba Deep Jungle Expedition was born. This is a tour to the core zone of Phong Nha - Ke Bang National Park, for those who are passionate about nature, conservation, wildlife and exploring caves in Vietnam. The area is home to many rare and protected animals, and plants. This unique limestone massif, covered by an ancient tropical forest thousands of years old, is home to many caves for those who are interested in cave exploration.

The Hang Ba Deep Jungle Expedition Tour is a completely new product, based on Oxalis’ 10 years experience in adventure tourism and conservation together with comments and advice from UNESCO and IUCN representatives in Vietnam, and members of the Phong Nha - Ke Bang National Park Management Board. Below are some special features of this tropical forest tour.

  • Differing from all other existing Oxalis Adventure tours, the Hang Ba Deep Jungle Expedition leads you through an ancient primary tropical forest where almost 95% of the route is under the tree canopy.
  • Only on this nature discovery tour, will guests be able to participate in early morning activities to immerse themselves in nature. Listen to the early morning chorus of birdsong as a signal of a new day, combined with the calls of monkeys echoing around the jungle.
  • Experience 3 campsites just inside and next to spectacular cave entrances, with amazing views, and cool in summer and warm in winter. Campsites are all away from the areas of wildlife activity, so that humans will not disturb the animals.
  • For the first time, Oxalis Adventures will take customers to see the habitats of many wild, rare and protected animals in Phong Nha - Ke Bang National Park. You will have the opportunity to observe the footprints and other traces of wild animals such as Mountain Goat, Deer, Wild Boar, Gibbons, Langurs, and Wildcats. Moreover, Oxalis has installed many camera traps throughout the tour. Activated by movement, these cameras will record the day and night time activities of wildlife. Images and videos will be downloaded onto a tablet for guests to view. Observing animals in this way means we will not disturb the normal activities of the animals, or drive them away from their natural habitat.
  • This is a trek where customers will become real cave explorers. This cave exploration tour will enable you to discover six amazing caves such as Dai Cao Cave, Maze Cave, Ba Cave, Vinh Dai Cave, Light Cave and Circle Bay Cave. This Vietnam cave tour is the first tour to visit these caves since their original exploration in 1992 and 1994.
  • Camping in the deep jungle where there are no lights, provides an opportunity for guests to observe the stars, moon, and perhaps the milky way unimpeded by artificial light. This is also a rare chance for those living in big, bright cities to enjoy a truly natural dark night. Hang Ba expedition Tour porters, guides, and chefs have undergone training on how to limit unnecessary noise and disturbance whilst working. By running forest expeditions in this area, Oxalis also helps to reduce the hunting or illegally logging actions of local people.
  • This jungle expedition tour of 4 days and 3 nights leads you deep into the core zone of Phong Nha - Ke Bang National Park with its challenging steep hills, sharp rocky terrain and natural caves, which is why you need to be well-prepared physically and with the correct clothing and equipment.
  • With a maximum of 6 customers per group, this special expedition will bring customers the best experience and at the same time make an important contribution to the conservation of biodiversity within the world heritage site of Phong Nha - Ke Bang National Park.

Note: Tour takes place in remote areas with complex terrains. Customers must be physically fit.

Please carefully read the tour itinerary and honestly fill out the booking information yourself, especially your experience and health condition.

To book a tour for a group, please send the tour information to them and instruct each member to complete the booking form on their own. Our booking system lets each person fill in their own information, avoiding errors or missing details when someone else does it for you. Read more about Oxalis Adventure Level.

HB4 trekking graph


Hang Ba tour itinerary may be changed due to weather conditions. The path can be quite muddy and slippery when it rains.

The Hang Ba Jungle Expedition requires physical fitness and endurance. Participants must have previous trekking experience. On average, customers will have to complete 8-10 km of jungle trekking with difficult terrain, cave exploration and swimming in caves every day. Some of the climbing sections will be supported by safety assistants and using safety equipment provided by Oxalis. When swimming in the cave, all guests and staff are required to wear life jackets. The activities on the tour are quite diverse, from early morning to late evening, and this is a proper expedition for trekking enthusiasts.

Download the itinerary

Phong Nha - KM 23 Road 20 - Deep Jungle Trek - Dai Cao Cave - Dai Cao Campsite

From 07:30 to 08:00 a.m on the departure day, the bus will pick you up at your hotel in the Phong Nha area and bring you to the Oxalis office. Here, you will listen to the safety briefing, sign the release form, pack your bag, and receive the necessary safety equipment.

After departing from the Oxalis office, the bus will take the group to the Wildlife Rescue Center at the Botanical Garden, where Phong Nha - Ke Bang National Park rescues and cares for animal species before releasing them back into the natural environment. Then, the bus will bring you to the drop-off point at KM23, on Victory Road 20, deep inside the National Park, to begin the expedition.

The journey to explore the jungle of Phong Nha-Ke Bang National Park starts with a steep uphill section, straight from the road. After 3 km of generally uphill trekking, the route then goes downhill for most of the way. The entire path is covered by dense primaeval forest with rare and ancient trees hundreds of years old, and you may see some animal tracks. The path consists mostly of hilly terrain, with steep rocky sections that have slopes exceeding 100% (more than 45 degrees). The group will stop for lunch along the way.

After lunch, the group will continue trekking to reach the exit of Dai Cao Cave in the mid-afternoon. Here the guide will show you the animal footprints on the floor inside the cave.

Donning life jackets the group will swim into Dai Cao Cave to reach the tall main passage of the cave. Here, you can see white fish and shrimp that are adapted to live in the total darkness of the cave. After that, the group will walk out of the cave for the first night at Dai Cao Campsite.

Having dinner at 18:00, relaxing, enjoying the quiet night or simply talking together and watching the night stars, the sound of the jungle will lull you to sleep.

Hang Ba – Circle Lake – Light Cave Campsite

Waking up at 5:00 a.m. everyone will sit together next to the stream at the campsite, and enjoy some tea and coffee. Observe the animal prints along the river bank, listen to the birds singing, and the calls of monkeys and other animals echoing throughout the mountains and jungle in the early morning (you can choose to stay at the campsite and not participate in this activity).

At 8:00 am, after having breakfast, guests will pack up their bags (the porter team will set off with the camp bags soon after) and prepare to explore Maze Cave - a beautiful cave with cave formations and amazing fossils. Trek and swim for around 30 minutes to reach the first entrance. In this cave, on a sunny day, you may see some sunbeams shining deep into the cave passage. The tour guide will identify the footprints of the wild animals.

Leaving Maze Cave guests will return to the campsite for lunch. After lunch, trek through the forest for about 2 km, admiring the many ancient and beautiful trees. Clamber over the rocks to reach the impressive entrance of Hang Ba - a cave with 3 cave exits and a beautiful green underground river. You won’t be able to stop taking pictures when you see these spectacular views. When you exit Hang Ba, the beautiful scenery of Circle Lake surrounded by limestone mountains and cliffs is revealed. Crossing this lake you will arrive at the second day’s campsite.

The camp is located in the middle of Light Cave, a short but beautiful cave with 2 magnificent cave arches.

Dinner will be served at 18:00, the group then take a break, enjoy the night in the cave or just quietly watch the starry sky and the milky way. It will guarantee to be an experience you won’t easily forget.

Morning Nature Concert - Circle Lake Cave – Vinh Dai Cave and Campsite

On day three of the journey, you will wake up at 5:00 am before dawn and paddle to Circle Lake to have some tea/coffee and listen to a special jungle concert. The sounds create a unique symphony. Don’t forget to check for animal footprints left on the sand during the night. To make the most of this nature and wildlife tour, be prepared to get up early and stay up late.

After enjoying breakfast at 8:00 am, customers can spend some time relaxing at Light Cave camp. The early morning sun illuminating both cave entrances will make you reach for your camera or phone.

After leaving Light Cave camp, the group will climb the steep hill above Circle Lake to explore Circle Lake Cave. The Circle Cave entrance is about 90 m wide and it is home to many animals. Camera traps are set up here and often capture some wildlife activity. Explore further into Circle Cave packed with endless cave formations and maybe see the sunbeams shining into this cave. Return to the campsite, take a rest and have lunch.

In the afternoon, carefully clamber over the rocky exit passage, before walking or swimming along the river to reach Vinh Dai Cave. Settle in at the campsite just inside Vinh Dai Cave and have a rest for tea and coffee before going to collect the memory card from the camera traps and reviewing the data from the previous days. Explore the main passage in Vinh Dai Cave, which also promises customers even more inspiring photo opportunities.

Return to the campsite and enjoy a delicious dinner at 18:00. After finishing dinner, move just outside the cave to relax and listen to the sounds of the jungle, look up to the stars above and make the most of your last night of the journey.

Vinh Dai Campsite - KM23 - Phong Nha

The morning meal will be ready for guests to welcome the new day. Enjoy the fresh and tranquil mountain air before packing up to conquer the towering peaks.

You should prepare 2L of drinking water, as there is no water along the trail. The day starts with a long and steep hike from the campsite. For the first hour or so the trek involves sharp rocky terrain and lots of climbing and scrambling. In some difficult sections, you will need to use safety harnesses and ropes fully supported and assisted by the guide and safety assistant team.

From the top of the rocky section, the route continues uphill in some way, but the terrain is much easier. The group will stop for a light lunch along the way, before the final downhill section. Depending on the speed of the group, guests will reach KM23, Victory Road 20 between 15:00 - 16:00. An Oxalis bus with cold beverages will be waiting to welcome you back. You will be awarded a medal recognizing the completion of Oxalis' most challenging expedition before boarding the return bus to Phong Nha.

The bus will take the group back to Phong Nha at about 18:00.

Suggested accommodations before and after the tour:
Chay Lap Farmstay is an ideal place to stay before and after joinging Oxalis cave tours. High quality rooms, swimming pool, spa, kayaking, cycling, yachting... Specially discount rate for Oxalis customers are 1 million VND/room for 2 people. Check availability here
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What to expect

Hang Ba Deep Jungle Expedition Tour is a nature discovery tour, to explore the tropical forest of the core zone of Phong Nha - Ke Bang National Park. Oxalis has designed this wildlife conservation tour for nature enthusiasts, devoted to conservation and passionate about adventure and exploring caves. This area is currently home to many rare and precious animal and plant species.

There are ancient forests which have existed for thousands of years and many species of birds. The National Park is also home to many unique caves, exciting for those who enjoy cave expiration.

Located in a remote area with difficult terrain, services are quite limited. Guests will be provided with tents, sleeping bags, and inflatable mattresses. More minimalistic than other Oxalis tours, as the focus is on conservation and reducing our impact.

The highlight of this Oxalis tour focuses on wildlife conservation, whilst at the same time showing customers the activities and kinds of animals living in the National Park, without disturbing them or their activities. Oxalis has also learnt that ecotourism activities will deter local hunters and loggers, creating even more protection for these endangered species.

Guests who book the Hang Ba tour will be advised to exercise, gain physical fitness, and participate in outdoor trekking/hiking/camping activities in order to be fully prepared for the expedition. Good fitness will enhance the enjoyment of the tour. Whilst the tour is physically challenging that is not the aim of the trek. Guests participating in the tour must be nature enthusiasts as they will spend a lot of time contemplating nature, temporarily disconnected from computers, the internet and phone calls.

Hang Ba Deep Jungle Expedition Tour is designed so that the duration and difficulty of each day is more or less the same. Guests are expected to be fit and capable enough to carry out most activities without assistance. You can find out more details about "expectations when participating in Hang Ba Deep Jungle Expedition" here.

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Weather and climate in Phong Nha - Hang Ba

Phong Nha - Hang Ba area has 4 seasons in a year (spring, summer, autumn and winter) like many northern provinces of Vietnam. Due to the weather conditions, and because Oxalis Adventure wants to protect and conserve the area, the Hang Ba Deep Jungle Expedition will only be available from February to mid-August every year. Weather conditions in the area are different in each season.

From January to March, there are many cold days, especially on rainy days but there are also many warm sunny days. April and May are the warmer months, and this is the time when wildflowers are blooming. From June to August are the hot summer months, but most of the time visitors are in the cave with the temperature from 22 to 25 degrees, or forest, so it should not feel too hot. In these summer months, visitors can also comfortably swim inside the cave. All of the camps are located inside caves so customers do not have to worry about rain or heat at the campsites.

Each season has its own unique features for visitors to explore and learn more about the area. In addition, guests can check the weather in Phong Nha through the Accuweather to have the best preparation for the Hang Ba Deep Jungle Expedition tour.

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Adventure level on tour

After many years of adventure tourism activities, Oxalis Adventure has created a Level of Adventure scale to help guests to visualise and choose the adventure tour most suitable for their fitness and health. This scale is not to be applied to other companies or tours with different conditions and terrains. The easiest level (level 1) anyone can join, and the most difficult level - 6 requires regular exercise and some trekking experience.

Those who regularly practise sports or regularly participate in mountain climbing and trekking tours in the forest can complete this tour easily.

Adventure Level 6 · Hard
The Hang Ba Deep Jungle Expedition Tour is rated as the most challenging (Level 6) on the Oxalis adventure level system. The difficulty of the tour is based on the physical fitness and health of average active people, not runners, athletes, or intensely active individuals.
Activities: Extensive rocky terrain, and some technical sections, steep ascents and descents.
The number of guests per tour: Maximum 6 customers; Age 18-70 years old.

  • 23km deep jungle trekking
  • 6 caves
  • Swimming, SUP paddling (optional) in caves
  • 3km of rocky hill scrambling
  • Total elevation gain: 1.678m
  • 3 nights cave camping
  • Dark sky observations
  • Nature concerts: Bird and animal songs
Adventure Level HB4 trekking graph

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Physical fitness requirements for The Hang Ba Deep Jungle Expedition Tour

The basic physical fitness requirements for participating in The Hang Ba Deep Jungle Expedition Tour include:

  • Trekking experience requirements: Within the last 12 months, it is required to have trekking experience, at least one overnight trek, and 1-2 day treks with the following tour elements: trekking routes through forest/mountain/rocky/steep terrains, covering a minimum distance of 8km per day (equivalent to 5 miles per day), with an elevation gain of at least 300m.
  • Fitness Preparation: Engage in strenuous sports such as football, and skiing, or regularly participate in outdoor activities such as walking or running (3-4 times per week, covering 4-5km each time) to maintain physical fitness. This ensures that they are able to:
    - Run continuously for 5 kilometres within 50 minutes.
    - Climb 5 floors continuously without becoming out of breath or dizzy.

Guests aged 18 to 70 are permitted to join The Hang Ba Deep Jungle Expedition Tour, which demands good physical fitness and prior trekking experience. Those with experience in mountain trekking and good physical health, as well as those who engage in regular sports training, could easily complete this tour.

Some guests on The Hang Ba Deep Jungle Expedition Tour may find it not particularly challenging, while others may encounter difficulties and require assistance from many safety assistants to complete the tour. The tour regulations allow safety experts and/or guides to temporarily suspend the journey, and escort guests out of the forest if significant difficulties are encountered on the itinerary. Refunds or rescheduling are not applicable in such cases.

For more information on the necessary physical activities for a successful trip, please refer to: https://oxalisadventure.com/getting-ready-oxalis-tour/.

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Safety on the tour

Safety is always Oxalis Adventure's top priority in order to ensure the safety of both guests and staff on any trip. Oxalis only uses international standard equipment, mainly imported from France, UK and Switzerland, selected, inspected and maintained by cave experts from the British – Vietnamese Cave Expedition Team. Tour guides and safety assistants are responsible for operating these devices and they have to undergo professional training courses and be evaluated regularly.

Otherwise, they will not be allowed to lead the tour. Please read more here about: "safety management" and "safety equipmen" that Oxalis uses here.

Dangers, risks and how to avoid them on tour

Any adventure activities will always contain risks and these must be carefully managed. Oxalis tours take place in remote locations without easy access to medical care. Hence a lot of work goes into managing and reducing risks to the lowest level possible. Please always follow the instructions of the tour guide and safety assistants.

You can learn more about "Adventure Safety Tips" here.

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Communication on tour

Hang Ba Deep Jungle Expedition tour is a lengthy trekking tour, and has the highest adventure levels among Oxalis tours in Vietnam. The tour area is located in the deep jungle, in the core zone of the national park and away from medical assistance, doctors and hospitals. The tour is mostly on jungle trails, hiking up and downhill many times, and there are no paths for bicycles, motorbikes or cars. The entire journey will have no phone signal, no wifi and no other amenities as in a hotel.

Each Oxalis Adventure tour is equipped with a satellite phone for the tour guide to contact the Operations team in the event of an emergency or incident. Customers can only use the internet and phone at the hotel before departure and when reaching a phone signal after leaving the jungle. While trekking in the mountains and exploring the caves, the safety team will communicate with each other by walkie-talkie if required.

Emergency Response Procedure

Oxalis Adventure has an established "Emergency Response Procedure" that includes on-site first aid and rescue if an accident occurs during trekking or cave exploration. We organize many training courses for first aid, rescue, and evacuation, and have rescue teams for each tour operation area. The specialized equipment is imported from abroad and complies with European standards. Due to the remote location, rescue teams and medical assistants will take from 30 minutes to 2 hours to reach the location. Therefore, the safety of visitors is the top priority of Oxalis in any activities related to caving in Vietnam. For Experts and Sales consultants to give suitable advice, guests are required to fill in their fitness and health information in the Booking form honestly. They are also required to update the information to the Oxalis consultant 45 days before the tour departure.

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Items to bring on Hang Ba Deep Jungle Expedition Tour

Hang Ba Deep Jungle Expedition Tour is a lengthy trekking tour in Quang Binh with many different terrains, so you must prepare for the trip properly. Customers will be asked to prepare suitable clothing for safety and comfort. Clothing should be good for trekking in the jungle, river crossings, or exploring the cave as well as avoiding dangers and risks from sharp rocks, snakes, insects, or poison ivy. Trekking shoes are very important for Hang Ba tour, therefore, visitors need to choose a good, well-fitting pair of shoes for steep rocky terrain and they should not be waterproof, as during river crossings they will hold water inside. Besides, they also need to prepare personal items for 4 days and 3 nights camping in the jungle and in the cave. The Oxalis tour consultant will give you helpful advice before joining the Hang Ba Deep Jungle Expedition Tour.

You need to prepare

Essential clothing

  • Trekking clothes:
    - 3-4 quick-dry, long-sleeved shirts (dark color)
    - 2-3 pairs of, long trekking pants (quick-dry)
    - 1 waterproof jacket (winter months February to March)
  • Campsite clothing sets:
    - Warm clothes for winter from January to March
    - Shorts and T-shirts for summer from April to August
  • 1 pair of good gripping trekking shoes (drainable); *Waterproof/Gore Tex shoes are not recommended.
  • 4 pairs of calf-length, thick socks
  • 1 pair of sandals/slides for campsite
  • Swimwear using at campsites

Personal items

  • Mosquito repellent
  • Sunglasses, sun hat, sunscreen
  • Hand fan for summer (April to August)
  • 1-2 medium towels
  • Underwear
  • Personal hygiene items (toothbrush, toothpaste, nature-friendly shampoo & soap, …)
  • Power banks
  • Personal medication
  • Antifungal foot powder
  • Passport

Oxalis provides

  • Camping equipment: tent, mattresses, pillow, sleeping bags
  • Caving and safety gears: helmet, headlight, gloves, …
  • Basic jungle boots (size 36-46 EU)
  • Semi-dry bag (15L) for campsite clothing sets
  • Water bottle (1L)
  • Water purifier
  • Compost toilet, toilet paper, hand cleaner
  • Floating backpack to carry stuff that you need while trekking
  • Dry box for electric devices
  • First-aid kit and medical rescue equipment
  • Satellite phone
  • Secure storage at office

Optional items

  • Arm cover if wearing short-sleeved T-shirts
  • Camera & Tripod
  • Ear plugs
  • Bandana or headband
  • Rehydration tablets
  • Blister prevention tape

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Campsites on the tour

All of the campsites on Hang Ba Deep Jungle Expedition tour are arranged inside the cave entrances. The special thing about this tour is that all of the most beautiful places such as by the lakes, next to the river or stream are left untouched so that human activities will not disrupt the habits of wild animals in the area.

On the first day of the journey, visitors will camp next to the entrance of Dai Cao Cave following an exciting swim through the cave in cool water after a long day’s trekking. The campsite is located at the entrance of the cave, next to a stream. Enjoy the food prepared by the chefs, listening to the murmuring stream, and bird and jungle sound. Guests can also see the stars and milky way after dinner whilst sipping a cup of hot tea or coffee.

Finishing day two, Light Cave camp is a great camp, possibly the most special camp on the trip because it is located in the middle of Light Cave. Whilst having dinner or chatting at the campsite guests will see the amazing view of the two cave arches, one on either side. The next morning, the sun will shine into the cave via the cave entrance, creating a magical scene. Enjoying breakfast and wonderful view from the Light Cave camp is a great way to start a new day.

The last camp in the journey is Vinh Dai Cave campsite located near the cave entrance. Vinh Dai Cave campsite is an exceptional camp, situated on a balcony overlooking the tall river passage, and with a great view of the entrance and jungle beyond. In the evening and early morning looking out of the entrance and seeing the mist on the jungle-covered mountains is amazing.

The average temperature in winter is around 15 to 18 degrees Celsius (59-65F), and in summer from 30 to 38 degrees Celsius (86-100F). Customers are provided with warm sleeping bags in winter or portable fans in the summer months for use in the tents. You can find out more details about the "Unique campsites in Hang Ba Deep Jungle expedition tour" here.

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Bathing at the campsite

All campsites on the Hang Ba Deep Jungle Expedition tour are next to streams or lakes. Guests can swim in the stream at the campsites, however, no soap or shampoo is allowed. Swimming activities are supervised by safety assistants.

Toilet at the campsites

For hygiene and conservation reasons, Oxalis has created eco-friendly toilets for our campsites, called "Oxalis Composting Toilets".

The toilet is inside a tent, and consists of a normal toilet seat on top of a box. Inside the box, is a bucket and waste bag to collect all waste and toilet paper which is provided. Nearby is a container of rice husks. After finishing, cover the waste with a generous scoop of rice husks. This ensures a dry composting process, which does not smell, and covers the waste from insects.

When the buckets are full, the porters will change them and bury the waste in a designated location in the jungle. This will biodegrade and turn into fertiliser.

Visitors are required to use the composting toilets for both urination and defecation. Urination outside the toilet or inside the cave is not allowed because of the smell and impact on cave formations and the cave ecosystem.

Hand washing facilities are provided.

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Directions to Phong Nha

Phong Nha is located 45 km from Dong Hoi City, the capital of Quang Binh Province (About 40 minutes by car). You can book a carpool/private car service from Oxalis to pick you up at the airport or train station, or you can hire a taxi. There are many ways to get to Dong Hoi such as a plane, train or sleeper bus.

* Visa: Vietnam provides visa exemption for citizens of ASEAN countries (30 days), and 45 days for citizens of (United Kingdom, Sweden, Denmark, Finland, Norway, France, Germany, Spain, Italy, Belarus, Russia).

* International airports: There are 3 main international airports for international flights: Tan Son Nhat International Airport (SGN), Noi Bai International airport (HAN) and Da Nang International Airport (DAD). From Ho Chi Minh City (Saigon) or Ha Noi, travellers can book domestic flights to Dong Hoi Airport (VDH). From Da Nang, traveler can catch a train or bus to Dong Hoi/Phong Nha.

  • Flight: Daily flights from Hanoi and Ho Chi Minh City are operated by Vietnam Airlines, Vietjet, Pacific Airlines, and Bamboo Airways. To Dong Hoi from Ho Chi Minh.
  • Train: From Hanoi to and from Ho Chi Minh City, there are numerous SE trains that travel every day. Dong Hoi station is where Ho Chi Minh has a stop.
  • Bus: Buses from Hanoi to Phong Nha, Dong Hoi, or from Da Nang, Hue to Phong Nha run often during the day or at night.

You can check out the means of transportation to Phong Nha here. “How to get to Phong Nha?". All participants of Oxalis Adventure tours will be picked up at their designated hotel around Phong Nha town on the morning of the departure day.

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Tour booking process

This is an adventure tour in Vietnam and requires a lot of logistic support. To avoid disappointment and complications, guests should choose the best tour for their fitness, abilities and interests. Reading the tour information carefully will help visitors make the right choice for their trips. The booking process includes the following steps:

  • Visitors carefully read the tour program and self-assess their health and physical fitness. Appropriate training and preparation may be necessary.
  • Guests carefully read the tour highlights and activities to ensure they choose the tour that most interests them.
  • Guests fill in their personal information on the booking form themselves. They are asked to give honest answers about their fitness and health.
  • After the reservation is made, the Oxalis consultant will contact you within 48 hours to review the information and give guidance for the next steps. If you have not received any news from Oxalis’ within 48 hours, please give us a direct call or check the spam box in case Oxalis’ emails are in there.
  • After approval, guests will be asked to pay 100% of the tour cost to confirm the booking.
  • Leading up to the departure, your Oxalis consultant will regularly contact you to support you with the preparation of items as well as physical fitness. Or you can contact us for questions.
  • 45 days before departure, guests are asked to update their health and fitness to Oxalis.

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Tour price and available dates for booking

The price for the Hang Ba Deep Jungle Expedition tour is 35,000,000 VND per person. For conservation and safety, each Hang Ba Deep Jungle Expedition tour will have a maximum of 6 guests and a maximum of 500 guests will be welcomed each year. Tours run from February to the end of August each year and include fixed departure dates for individuals to sign up. In addition, Oxalis also has private tours for special groups or film crews. Please see the departure schedule in the calendar below, the dates in bold are the days with availability. If you don't see the calendar, please wait a few seconds or press F5.

The date in bold is the first date of the tour schedule. The tours are operated from February to August (closed from September to January). Tour costs include VAT, environmental fee, sightseeing ticket, and travel insurance fee. A discount of 10% for Xieu (Xieu return customers).

Terms of tour cancellation

Hang Ba Deep Jungle Expedition Tour has only 150 guests each year, so available slots are booked quickly. To confirm reservations, visitors will be required to pay 100% of the tour cost after approval. For this tour guests need a lot of time to exercise, prepare physically, and prepare the necessary items for the trip. Cancellation of the tour or change of departure date will greatly affect the logistics and operating costs of the tour. In order for Oxalis to make any changes or find a replacement if necessary, the tour cancellation terms are as follows: Cancellations and full refunds can only be made 30 days before the tour departure date. Oxalis will charge 50% of the tour price if you cancel 15 days in advance, and there will be no refund for cancellations within 15 days.See details of the Cancellation Terms here.

Included in the tour price

The price of Hang Ba Deep Jungle Expedition tour is 35,000,000VND (USD 1,458) per person, this price includes VAT, sightseeing fee, forest environmental service fee, management fee and other fees of the national park. The tour includes the following services:

  • Logistics team: Each 6-guest tour will have 1 tour guide, 3 safety assistants, 1 chef, 4 porters and 1 park ranger.
  • Food: Oxalis provides food, drinking water, tea, and coffee during the journey (not including extra requirements). Dishes are based on fixed menus; vegetarian and vegan menus will be provided if ordered. Please inform us of any food allergies.
  • Accommodation: The expedition includes 3 nights camping in the cave.
  • Safety equipment: Oxalis will provide safety equipment such as helmets, harnesses, headlights, gloves etc.
  • Traveling insurance: Oxalis buys travel insurance for all tourists participating in the tour with a maximum compensation of VND 10,000,000. Visitors are advised to purchase their own comprehensive travel insurance prior to joining the tour.

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

    For Hang Ba Deep Jungle Expedition tour, we set fixed departures every month so travelers can book tours independently. If the fixed departures cannot fit you, please contact us to book a private tour or request a specific date when you have found 6 members.

  • 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.

  • What is the weather like in the cave and jungle?

    In Winter (November - next February), sometimes there are cold waves that last around 5-7 days or more, and the temperature could go to 8-18°C (47-65°F). When the temperature goes below 18°C (65°F), you will cross the river or go along the river inside the cave by boat, raft.
    From March to May, most of the time the weather is cool. It can be hot and cold on some days.
    In Summer (June - August), the temperature is around 32-38°C (90-100°F), so you can enjoy swimming in the river, stream, and inside caves.
    The temperature inside the cave usually keeps at 18-23°C (65-73°F) in Winter, and 22-25°C (71-77°F) in Summer.

  • What can I do If I want to talk to/contact a consultant?

    You can easily contact a consultant via chat box (on the right corner) on Oxalis website or email to: [email protected]; Hotline: +84-919900357.

You may like

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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