Visitors take photos in a three million years old ice cave in Ningwu County of Xinzhou City, north Chinas Shanxi Province. They're so chilly that even standing outside you can feel the cold - even on a hot summer's day.
The caves are in Ningwu County of Xinzhou City, in north China's Shanxi Province and this one is more than 100m long. Inside it is covered with thick ice that freezes in the winter and remains all year. Huge icicles are formed which hang from the ceiling, in sharp contrast with the green summer foliage outside. The cave, situated in the middle of the Yellow River valley, is visited by tourists all year
The cave, lit up by coloured lights, is more than 100 meters long and ice remains all year
The caves are so cold it sends a shiver down the spine of people standing outside
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