Not because it's scary - but because of its sheer beauty.
Situated in the heart of one of China's most scenic regions these incredible ice caves are more than three million years old.
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 caves are so cold it sends a shiver down the spine of people standing outside|
|The cave, lit up by coloured lights, is more than 100 meters long and ice remains all year|
|The cave, situated in the middle of the Yellow River valley, is visited by tourists all year|
Source: Daily Mail