Credit by Inside Son Doong | Huffingtonpost.com
Photos: This cave in Vietnam is so big it can fit a complete city
FUN FACTS Vietnam

Photos: This cave in Vietnam is so big it can fit a complete city

The Son Doong Cave in Vietnam is the biggest cave in the world. It’s over 5.5 miles long, has a jungle and river, and could fit a 40-story skyscraper within its walls.

Son Doong X
Son Doong X

But nobody knew any of that until about six years ago.

The recently discovered cave has been touted as the largest in the world, although other caves vie for the title of longest (Mammoth Cave in Brownsville, Kentucky nabs that title with about 400 miles of passageways) and deepest (Krubera Cave in the nation of Georgia).

Son Doong I
Son Doong I
Son Doong II
Son Doong II
Son Doong III
Son Doong III
Son Doong IV
Son Doong IV

A local man discovered the cave entrance in 1991, but British cavers were the first to explore it in 2009. Tour company Oxalis has been running trial tours of the cave since two summers ago.

The lucky people who have entered Son Doong so far, like photographer John Spies, have emerged with some amazing photos.

Son Doong VI
Son Doong VI

The man who discovered Son Doong didn’t go in because the entrance he found had too steep a drop. On tours, visitors rappel 80 meters to enter Son Doong.

On their first night inside the cave, visitors camp near Hand of Dog, a humongous stalagmite that looks like a dog’s paw.

Son Doong VII
Son Doong VII

The roof of the cave collapsed centuries ago, allowing a lush jungle to take root. Monkeys and flying foxes live in what explorers named the Garden of Edam.

Son Doong VIII
Son Doong VIII

Fields of algae from ancient pools blanket parts of the cave’s interior. Son Doong is a jackpot of rare cave pearls. The pearls form over hundreds of years as water drips down, dries up and leaves layers of calcite crystals on grains of sand.

Son Doong IX
Son Doong IX
Son Doong XI
Son Doong XI
Son Doong XII
Son Doong XII

Scientists have discovered never-before-seen plant species around Son Doong’s waterfalls. Oh, and there’s a whole river in there, too.

Photos by John Spies and Carsten Peters/Getty Images.

Source : Huffington Post

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