Experience the World’s Largest Cave with a team of safety experts, professional guides and porters on this world-class tour of Hang Son Doong. This caving adventure is suitable for budding explorers, trekkers and photographers with a thirst for the ultimate adventure!
Explore the fascinating secrets of the newly discovered Son Doong Cave on this once-in-lifetime opportunity offered by Oxalis Adventure Tours. In a small team of up to eight guests, you’ll trek deep in the remote jungle of Phong Nha Ke Bang National Park, cross stunning river valleys, meet the friendly Bru VanKieu minority people of Doong Village, and bear witness to incredible cave formations unlike anywhere else in the world.
More like a mini-expedition, a team of more than 16 porters, safety experts and guides will accompany you on your six-day adventure, with two nights camping in magnificent Hang En and three nights in the World’s largest cave, Hang Son Doong.
Safety is absolutely paramount on all trips operated by Oxalis Adventure Tours and hence two of the very best caving experts from the UK will accompany each tour of Son Doong Cave. Ropes, safety harnesses, lights and helmets are necessary to enter Son Doong and these are all provided from European manufacturers such as Petzl and Mammut.
Camping gear is provided and will be setup for guests upon arrival at each campsite. A team of porters will carry all gear and assist you with your own gear to ensure you can comfortably maneuver your way through the cave on each day.
We are committed to cave conservation, and hope to preserve the beauty of Son Doong Cave for future visitors and have hence imposed a number of rules to ensure no damage is caused to any cave formations or the general cave ecosystem. Composting toilets are used at each campsite and all rubbish and waste removed at the completion of each tour of Son Doong.
Activity: Trekking, caving, river crossings, underground camps
Day 1 | Arrive in Phong Nha for evening safety briefing and tour preparation, overnight at local Phong Nha Hotel (D).
Day 2 | Depart Phong Nha village for the drop-off point located approximately 35km within the Phong Nha Ke Bang National Park. Descend into the river valley passing a minority village and trek 6km to arrive at the camp inside Hang En (B/L/D).
Day 3 | In the early morning, travel through this enormous cave to reach its jaw-dropping exit and then follow the river through the jungle to the entrance of Hang Son Doong. Descend an 80m vertical drop to emerge into the first huge passage of Hang Son Doong. Cross the underground river twice and emerge in the gigantic main tunnel. Pass the Hand of Dog to first campsite close to the first underground doline (B/L/D).
Day 4 |On this day you will pass incredibly large boulders straddled by 200m cliffs to the first doline and small jungle within the cave. Visit the Garden of Edam and camp at beach camp, one of the best campsites in the world with superb views of the jungle from the camp. Huge 250m high cliffs are visible from the camp. Flying foxes, monkeys and hornbills are often seen in this section of the cave (B/L/D).
Day 5 | Leave camp and travel deeper into the cave to reach the Great Wall of Vietnam, and depending upon water levels a boat may be required to complete this final section. Return to camp 1 near the first doline and visit a newly discovered passage with excellent examples of 300,000,000-year-old fossils (B/L/D).
Day 6 | Spend one extra night in the jungle on the way back to Phong Nhacamping at the magnificent Hang En. Enjoy an evening celebration with your porter team (B/L/D)
Day 7 | Arise early and trek back to Phong Nha. Spend the evening at local Phong Nha Hotel and enjoy a welcome back celebration party (B/L/D).Option to depart in the late evening by bus or train from Dong Hoi. Otherwise, check out the following morning (Day 8) and transfer to Dong Hoi
US$3,000/person (2014) (Max 8 persons per tour). Private group: Please contact us
We do not have schedule for 2015 yet, we will update later this year.
Transfers to/from Dong Hoi (Hotel/Airport/Train Station)
Accommodation during Tour (2 nights hotel + 5 nights camping)
All food and drink during the tour (tea/coffee/drinking water/wine).
Expert cave instructors to guide on safety equipment and caving techniques.
English speaking Vietnamese guide to provide local knowledge about area and caves.
Experienced caving porters who will carry all the food, camping and caving equipment, set up camp and prepare meals.
Caving equipment: SRT Ropes, karabiners, safety harnesses, caving helmets and lights, trekking boots, drinking bottle.
First Aid Kit and Rescue equipment
Walkie-talkies and Satellite telephone
Camping equipment: tents, sleeping bags and mattresses.
National Park permit and entry fees
Value Added Tax (VAT)
The following is not included within the tour price:
Generator/Fuel for Charging Cameras etc.
Accommodation before and after the tour dates.
Oxalis Booking Conditions
The information within our website, brochures and other marketing material has been compiled with care and is provided in good faith. However, it is subject to change and does not form part of the contract between the customer and Oxalis Adventure Tours. When making a booking with Oxalis Adventure Tours you agree in full to the following conditions:
All prices quoted on the website are subject to change due to fluctuations in the exchange rates or additional government fees which may be imposed at any time. In the case of minor increases to hotel pricing or other related services, we won’t revise the cost of the trip which has already been confirmed.
Payment & Tour Confirmation
Tu Lan, Hang En, and National Park Tours:You are required to make full payment upon arrival at our office before your tour departure. You can make payment via credit card (3% fee) or in cash (VND or USD).
Son Doong Tours: You are required to make a 50% deposit as per the invoice before your place is confirmed on the tour. The balance will be due 90 days before departure.
Tu Lan, Hang En, National Park Tours: We do not currently charge a cancellation fee but expect you to inform us at least 7 days in advance if you will not be making it to Phong Nha on your specified departure date.
Son Doong Tours: If cancellation received more than 90 days before departure then a full refund will be made to the customer minus bank transfer fees. If cancellation received between 60 and 90 days a 50% cancellation fee applies and the balance refunded. If cancellation received less than 60 days before departure then 100% of the tour fee is due and no refund will be made.Please note, we will accept a name-change if you cannot make the tour and have a suitable replacement (see amendment conditions). You must provide us with detailed bank account information for the refund and it will be processed within 30 days of the cancellation being received.
Tu Lan, Hang En, National Park Tours: Please let us know 7 days before arrival if you need to make an amendment to your booking.
Son Doong Tours: Once a booking has been confirmed no amendments can be made to the booking with the exception of a name-change (e.g. you find a replacement to take your place and do not want to pay cancellation fees). In the case of a name-change, you must handle payment directly with your replacement person. Please note, your replacement must meet our fitness requirements.
Refunds are not made for any unused services. No refund will be made if you leave the trip early for any reason. You will be responsible for any additional hotel or extra costs incurred after leaving the tour early, including transfer costs back to Phong Nha if the rest of your group continues with the tour as scheduled. If refunds are made, the transfer costs will be borne by the receiver of funds. If for any reason a Son Doong tour cannot depart due to government interventions we will offer a full refund of all payments.
Passports, Visas & Police Registration
All customers must hold a valid passport and valid visa. It is your responsibility to obtain a current Vietnam visa. All passports and visas must be presented upon arrival at Oxalis Adventure Tours office in Phong Nha. A photocopy will be made in our office and provided to local police for registration before accessing any area that we conduct tours.
A very high level of care is taken to ensure suppliers maintain high standards. However, as we do not operate transfer services, hotels/home-stays or restaurants, and we cannot be responsible in any way or problems resulting from the booking, unless it is a direct result of negligence on our part or part of our employees.
You are fully aware that you are travelling in an area that is remote and subject to unusual climatic conditions. Should Oxalis Adventure Tours deem it advisable to amend an itinerary, it may do so by varying or completely rerouting any trip. In this case the traveller will make no objection or claim for compensation from Oxalis Adventure Tours. Compensation should be made through your insurance company. Refunds will be at the total discretion of Oxalis Adventure Tours.
Tu Lan, Hang En, National Park Tours:Oxalis Adventure Tours will do everything it can to ensure your tour departs on time. However, all tours require a minimum number of guests to depart. In most cases, the minimum is two guests. Oxalis Adventure Tours reserves the right to cancel any tour 7 days prior to departure should the group size fall below the minimum numbers required. Alternative dates will be made available. Should this option be unacceptable, a full refund of all payments will constitute full settlement.
Tour Guide Authority
Oxalis Adventure Tours reserves the right to decline, accept, or retain any person as a member of any party at any time. Travellers agree to accept the authority of the Oxalis tour guide and staff and follow all 'Cave & Trekking Rules'. Oxalis Adventure Tours will not accept responsibility or liability for any traveller who contravenes any laws or regulations of Vietnam.
It is a fundamental condition that you acknowledge that we operate adventure tours, which require some flexibility on your part as the itinerary may change due to any number of reasons; safety, weather, etc.. The day-to-day itinerary is to be taken as a guideline only and not a contractual obligation. When trekking in remote areas you are advised to reserve extra days to allow for some delays to avoid frustration and inconvenience. Oxalis Adventure Tours will not be responsible for any costs associated with booking alternative travel arrangements, flights, visas etc. if there are delays to the scheduled tour.
Travel Insurance & Risks
You must purchase a comprehensive travel insurance package covering medical treatment, natural disaster, personal accidents, guided-caving tours, medical evacuation etc.. You understand that during the course of the trip certain events may occur such as accident or illness in a remote location without medical facilities. You agree to assume all risks and hold Oxalis Adventure Tours blameless on all accounts of accident or illness.
All information and advice provided either directly or via email related to vaccinations, climate and weather, trekking equipment, visas etc. is given in good faith but Oxalis Adventure Tours takes no responsibility for the accuracy of this information.
You must be in good physical health before attempting any tour with Oxalis Adventure Tours. It is vital that participants with pre-existing medical problems or conditions make these known to Oxalis Adventure Tours. Medical and evacuation expenses are the responsibility of the participant. It is important that you consult your doctor for vaccination and other medical requirements before you depart. If you cannot complete any section of the tour due to lack of physical ability you will be turned around at your own cost.
We do not accept children under the age of 16 on any scheduled group tour departure to Tu Lan, Hang En or Son Doong, and this is due to safety, trekking speed, group dynamic etc. If you wish to bring children between 12 and 16 years old you must book a private tour departure, and the price will be adjusted accordingly. We do not accept children less than 12 years old on any tour for any reason.
Oxalis Adventure Tours respects your privacy. We will only collect personal information that is relevant to your travel arrangements. We will protect the privacy of the information you provide us and only pass it to third parties such as hotels and local authorities when that information is necessary to fulfill your travel arrangements. In providing this information to us, you consent to Oxalis Adventure Tours using this personal information for the purpose of making and completing arrangements with related services.
Please do the following before booking:
1. Answer all questions in Medical and Fitness Form and sign (download here)
2. Scan your passport (and all participants)
3. Mention your tour date (please check schedule tab)
4. Send copy of passport(s) and completed Medial and fitness form to
, we will review get back to you soon
Q: Do I need to be very fit for this tour?
A: You do need a moderate to high level of fitness, as there is a lot of trekking involved each day. You should have some experience of trekking and camping before attempting this tour. We will turn around anyone who does not comfortably manage the first day trek of 10 km and first underground caving area.
Q. Do I need previous caving experience or abseiling to join this tour?
A: No, you do not require any experience of caving or abseiling. Some climbing is required but it is not too strenuous and at all times you will be tied to a safety line controlled by the safety guides. If you have a big fear of heights please do not attempt this tour.
Q: Do you provide travel insurance?
A: No. You must purchase your own insurance and provide us with a copy of your insurance statement upon final payment one month before departure.
Q. How can I book a place for your Son Doong tour?
A: You must send us the completed medical/fitness form and a scanned copy of your passport to secure your spot. Payment will be requested in November, 2013, once we have the final green light from local government to confirm bookings.
Q: When should I arrive/depart from Dong Hoi?
A: You should arrive on Day 1 of the tour itinerary no later than 4pm. We recommend allowing 2 extra days before any international flight as delays due to weather can sometimes occur.
Q: What are the nearest international airports?
A: There are 3 International Airports in Vietnam you can flight to: Tan Son Nhat airport (Ho Chi Minh City) - from this airport you can take domestic flight to Dong Hoi Airport by Vietnam Airlines, Noi Bai International Airport (Hanoi), from here you can take train or flight to Dong Hoi (Quang Binh Province), Da Nang Airport, from take private car or train to Phong Nha. See more here http://oxalis.com.vn/location
Q: Do you provide transfers from Hanoi or Ho Chi Minh City?
A: No, we only provide pickup from Dong Hoi, the nearest airport and train station to Phong Nha Village. Please arrive in Dong Hoi on the first day of your tour (Day 1). We do not book flights.
Q: Can I charge my camera whilst on the tour?
A: No. However, we can arrange for an additional porter and hire of a small generator for around $400 per group departure. Most people just bring multiple batteries.
Q: Can I wash and clean myself each day of the tour?
A: No. We have limited water supply in the cave. You are going to get dirty. We will take you to some areas to wash but please don’t expect anything fancy. This is camping in a cave! There will always be enough for water for cleaning teeth. We provide hand gel for use before meals.
Q: Are there snakes and spiders in the cave?
A: Yes. There is a small chance you will encounter snakes, spiders or leeches.
Q: What sort of clothes should I bring?
A: We recommend lightweight trekking clothing. Long trousers for trekking and caving, shorts may be worn around camp. A pair of good trekking boots and a headtorch for use around camp. We will send you a list nearer to the tour date.
Q: What would you do if someone has an accident in the cave?
A: We always carry a comprehensive first aid kit and satellite phone. We have a stretcher available in the cave. We have experience in cave rescue techniques.
Q: How sustainable in taking tourists to Hang Son Doong?
A: Son Doong cave is a very special place that requires minimal impacts, therefore only 224 tourists is allowed per year. Read our Conservation strategy here