The Colossal Er Wang Dong Cave System (11 pictures)

The Er Wang Dong cave system is huge. And until recently, the massive system of caves had yet to be discovered. A group of expert cavers and professional photographers recently explored the Er Wang Dong cave system for the first time during a month-long expedition to the Chongquing province in China. Located near the rural village Ranjiagou, one can enter the huge, complex cave system by walking, swimming or abseiling into the caves.
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