An underground cave discovered in Guangxi province in southern China is 16.5km long. Photo: Xinhua

Scientists discover 16.5km-long underground cave with rivers, waterfalls and wildlife species in southern China

The cave, which is 420 metres deep in places, was found during an eight-day expedition in Guangxi province

Topic |   China Society

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An underground cave discovered in Guangxi province in southern China is 16.5km long. Photo: Xinhua
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