HỆ SINH THÁI HANG SƠN ĐOÒNG

The biggest cave sầu on the planet when measured by cross-section. Discovered and explored for the first time in 2009. Only open lớn the public since 2013. Unique for the two enormous dolines (cave sầu roof collapses) và underground rainforests. Home to the “Great Wall of Vietnam giới,” a 90m high calcite barrier. Various unusual cave formations, including huge cave pearls, towering stalagmites and phytokarst. Nestled in Phong Nha-Ke Bang National Park, trang chủ lớn some of the world’s largest caves. Oxalis Adventure works with the British Cave Retìm kiếm Association and the Vietnamese government khổng lồ carry out the expeditions. For conservation và safety reasons, you can only visit Son Doong on four-day expeditions with Oxalis Adventure.

Local man Ho Kkhô hanh discovered Son Doong in 1990 while searching Phong Nha-Ke Bang National Park for food và timber to earn a modest income. During his tìm kiếm he stumbled across an opening in a limestone cliff, noticed clouds billowing out from the entrance & heard the sounds of a river raging from somewhere inside. He returned home và forgot about the cave sầu.


Ho Khanh khô met Howard & Deb Limbert of the British Cave sầu Retìm kiếm Association (BRCA), who were conducting exploratory caving expeditions in the area. After hearing his stories, they urged Ho Khanh to rediscover the cave sầu, which he eventually did in 2008, after several attempts. In 2009, he led Howard, Deb & a team of other caving professionals khổng lồ the opening. After the first survey in 2009, the team were able to conclude that the cave sầu had the largest cross-section of any cave sầu anywhere on the planet.

Bạn đang xem: Hệ sinh thái hang sơn đoòng

The cave was named “Son Doong” and Ho Khanh khô is still an integral part of every Son Doong Expedition


Son Doong is relatively young – about 3 million years old in a limestone area dating bachồng 400 million years. The mighty Rao Thuong River carved out Son Doong as it eroded away the limestone, forming an enormous tunnel beneath the Truong Son Mountains. The large dolines (or skylights) collapsed sometime in the last 500,000 years, creating massive sầu openings lớn the outside world. Cave sầu pearls the kích cỡ of baseballs và stalagmites the kích cỡ of tall buildings have formed from water dripping from the cave sầu ceiling.


The first expedition was halted by a 90m high calcite barrier, which was jokingly dubbed the “Great Wall Of Vietnam.” It wasn’t until the second expedition in 2010, when the Great Wall was finally climbed và the end of the cave sầu was found. The main huge passage is over 5km long with sections reaching up khổng lồ 200m tall and 150m wide. Son Doong is large enough to house an entire 40-story Thành Phố New York City bloông xã skyscraper.

Cave sầu experts are researching the connection between Son Doong Cave và neighbouring Thung Cave sầu. If the connection is made , Son Doong will be the largest cave sầu in the world by volume, as well as cross-section. Find more information about the diving expedition in Son Doong Cave.



You can only visit Son Doong on four-day expeditions with Oxalis Adventure.

Son Doong Expedition 4 Days

Whether you prefer long treks, camping in a cave sầu, 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.



1 Day · Level 1 · Introductory

Tu Lan Family Experience

An igiảm giá khuyến mãi family trip to explore nature and the magnificent caves of the Tu Lan cave system including trekking, swimming in natural steam, picnic lunch at the river, discovering Rat Cave, exciting mini-game.

VND 1,800,000/person Promotion 2021 VND 1,6trăng tròn,000 Normal price VND 1,800,000/pax

1 Day · Level 3 · Moderate

Hang Tien Discovery

With only one day, you can still enjoy a challenging trek, a natural swimming pool và see a spectacular cave sầu.Hang Tien, also known as Fairy Cave sầu has an enormous entrance, large calcite formations and unusual rochồng features.

VND 2,000,000/person Promotion 2021 VND 1,800,000 Normal price VND 2,000,000/pax

1 Day · Level 2 · Easy

Tu Lan Experience

An action-packed day trek to lớn explore the marvelous jungle và caves of the Tu Lan System - trang chính of the Hollywood blockbuster Kong: Skull Islvà (2017) by Jordan Vogt-Roberts.

VND 1,800,000/person Promotion 2021 VND 1,6trăng tròn,000 Normal price VND 1,800,000/pax
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2 Day · Level 2 · Easy

Tu Lan Family Adventure

An ikhuyễn mãi giảm giá journey for all members of the family to explore Tu Lan"s wilderness. Many enjoyable mini-games & activities for kids lớn join in such as trekking, swimming, painting, caving, and overnight camping.

VND 5,500,000/person Promotion 2021 VND 4,950,000 Normal price VND 5,500,000/pax
2 Day · Level 3 · Moderate

Hang Tien Endeavor

This is a challenging trek to lớn visit Hang Tien 1 và 2 - two biggest caves of Tu Lan cave system. Hang Tien means Fairy Cave in Vietnamese as it looks otherworldly with an enormous entrance, calcite formations và roông xã features.

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VND 6,500,000/person Promotion 2021 VND 5,850,000 Normal price VND 6,500,000/pax
2 Day · Level 2 · Easy

Tu Lan Cave Encounter

This tour offers a glimpse into the amazing beauty of the Tu Lan area: caves, karst mountains, jungle, & waterfalls. It is an opportunity lớn go deep into the rugged và untouched nature of Vietnam giới.

VND 5,500,000/person Promotion 2021 VND 4,950,000 Normal price VND 5,500,000/pax
2 Day · Level 3 · Moderate

Hang En Cave Adventure

An unforgettable adventure inkhổng lồ one of the largest caves on Earth – Hang En, where you get a bucket list camping experience inside the cave và admire nature’s beauty like never before.

VND 7,600,000/person Promotion 2021 VND 6,840,000 Normal price VND 7,600,000/pax
2 Day · Level 4 · Challenging

Hang Va Expedition

A true underground adventure khổng lồ visit two spectacular river caves of the National Park. Nuoc Nut Cave is a large cave with both dry & river passages with clear xanh pools.

Promotion 2021 VND 8,000,000 More benefits included
3 Day · Level 5 · Demanding

Hang Ba Expedition

Hang Ba Expedition 3 Days Journey is comparable lớn the Son Doong Expedition tour in terms of difficulty, which is one of the two most challenging itineraries of all Oxalis Adventure tours.

Promotion 2022 VND 19,800,000 VND 22,000,000/pax
3 Day · Level 4 · Challenging

Hang Tien Exploration

The perfect journey to lớn explore both most fascinating wet & dry caves, especially Hang Tien 1 & 2. They are the biggest dry caves of the system with enormous entrances, large calcite formations và unusual roông chồng features.

VND 8,500,000/person Promotion 2021 VND 7,650,000 Normal price VND 8,500,000/pax
3 Day · Level 3 · Moderate

Wild Tu Lan Cave sầu Explorer

This exciting journey has some challenging sections, but with the help of the team you will explore six amazing caves. River caves where you can swlặng or raft và dry caves covered in outstanding calcite formations.

VND 8,000,000/person Promotion 2021 VND 7,200,000 Normal price VND 8,000,000/pax
3 Day · Level 2 · Easy

Quang Binh Exploration

The 3-day-2-night package is designed exclusively for those who are looking for a vacation combined with exploring the uniqueness of cave systems in Quang Binh.

5,600,000 đ/pax
4 Day · Level 6 · Hard

Son Doong Cave sầu Expedition

This four day expedition will explore Son Doong Cave sầu the world’s largest cave sầu passage. Trek through vast underground spaces và marvel at the continually changing display of stalactites and stalagmites.

Promotion 2021 VND 58,200,000 VND 69,800,000/pax
4 Day · Level 5 · Demanding

Tu Lan Expedition

This cấp độ 5 expedition is one of our most challenging treks. Throughout the four days you will explore numerous caves, both river caves & dry caves; abseil inside Tu Lan Cave down to the underground river

Promotion 2021 VND 15,000,000 More benefits included
4 Day · Level 2 · EASY

Quang Binc Experience

This package is designed for those who want to balance between discovery và relaxation with light activities, suitable for families traveling with their children.

6,300,000 đ/pax

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