Exploring Son Doong Cave

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Son Doong Cave is the world’s largest cave in Vietnam.A trip to Son Doong Cave is a jaw-dropping adventure like no other. Why don’t you come and explore this incredible cave?

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The discovery

Located in the heart of the UNESCO-listed Phong Nha-Ke Bang National Park in Vietnam’s Quang Binh province, Hang Son Doong is one of the most captivating adventures that can be experienced in Southeast Asia.

More people have stood on the summit of Mount Everest than have witnessed the surreal beauty inside these enormous chambers. Translated as Mountain River Cave, it was first discovered in 1990 by Ho Khanh, a local farmer who was seeking shelter from a passing storm in the jungle.

He noticed clouds and the sound of an underground river gushing from a large hole in the limestone, and reported his findings to the British Caving Research Association (BCRA), who were stationed in Phong Nha at the time.

Unfortunately Ho Khanh lost his bearings during his return, and the exact location of the cave remained lost for 18 years. In 2008 while hunting for food he stumbled across the entrance again, and returned the following year with Howard and Deb Limbert from the BCRA.

Son Doong Cave ( via Vietnamonline.com)

They began the exploration of the cave, and in 2010 determined it to be the largest ever discovered in terms of the size of its cross-section. The news shook the caving world.

The expedition to Hang Son Doong

Stretching more than five kilometers (three miles) long and reaching heights of 200 meters (650 feet), the main cavern of Hang Son Doong is large enough to house an entire New York City block.

In 2013 Hang Son Doong was opened to the public for the first time, with the adventure tour company Oxalis running the exclusive five-day expedition.

Limiting the tour to only one operator has protected the cave from mass development. Only 10 customers per departure are permitted. Tours run once per week between February to August per year.
Not only exceptional in size, Son Doong is also ranked by BBC News as the most beautiful cave all over the globe. If you have ever watched James Cameron’s Avatar, you may find Son Doong more or less similar to the scenes on Planet Pandora. Untouched by humans and abnormally large, Son Doong has its own river, jungle and climate. Yes, river, jungle, and climate within the cave! The huge temperature difference between the air inside and outside creates a constantly hovering clouds of mist that gives rise to a miraculous and surreal atmosphere.

Son Doong Cave ( via tuoitre.vn)

The eco-system inside Hang Son Doong is as unique as it is large, and it even has its own localized weather system. Rare limestone cave pearls are scattered in dried pools, and the largest stalagmite ever found stands 80 meters (262 feet) tall.

Collapsed ceilings have created openings known as dolines, allowing foliage to grow inside the cave. Microscopic organisms thrive in the darkness.

The journey to Hang Son Doong is not for the faint-hearted. Involving two days of intense jungle trekking and river crossings to reach the entrance, nights are spent camping inside the cave and the nearby Hang En, now known to be the third largest cave in the world. Once inside hikers are expected to abseil, climb, crawl and swim through underground rivers to arrive at the end of the cave. It’s an adventure like no other.

Despite the physical demands guests are perfectly cared for, two caving experts, three local guides, two chefs, two park rangers and 20 porters join every expedition. The scale of the operation is phenomenal, and this ensures everyone’s safety and welfare, along with the preservation of the cave, is looked after with expert precision.

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