Breathtaking pictures show the world's largest cave in Vietnam which has its own climate and CLOUDS. The spectacular Han Son Doong cave in Vietnam is so gigantic it could fit a 40-storey skyscraper within its walls.Tours are limited to 450 visitors each year in a bid to create a sustainable future for its vast caverns and plant-life
With the eerie green glow inside the mystical, echoing cavern, Vietnam's Han Son Doong cave looks like it could be on the edge of the world. The huge cave - large enough to fit a 40-storey skyscraper - is so massive that it has its own climate, and clouds even form inside it.
At more than 200m high, 150m wide and 5km long, the Hang Son Doong cave in Vietnam is so big it has its own river, jungle and climate. Australian photographer John Spies, 59, spent a week photographing the natural wonder of the cave system. "With ceilings towering over 200 metres high in places, the cave is a humbling and belittling experience," said John, who has lived in Thailand since 1977 and runs the Cave Lodge guesthouse

It's not a trip for the faint-hearted - it takes a half day trek through a stunning jungle peppered with butterflies and a journey through knee deep rivers to finally get to the entrance of the colossal cave.
Adventurous explorers must also pass through the third largest cave in the world, Hang Ev cave - used as a location for the Peter Pan blockbuster.

Music: From Scales To Feathers (Thirsty Lizard Mix) by Dhruva Aliman
https://dhruvaaliman.bandcamp.com/album/the-wolf-and-the-river
http://www.dhruvaaliman.com/
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