WELCOME to the 750-foot deep rainbow cave that leaves visitors bewildered by its multi-coloured mood lighting. Pictures show how blue has been used to create an eerie atmosphere in a deep recess of the 180million year old cave, while red has been used where limestone formations can be spotted to make them look trippy. Retired nurse Helminadia Jabur, 36, from Indonesia took the pictures in on July 21st 2011, while she was on holiday in the region. ‘I have a friend who is from this part of China and she has always told me incredible stories about this place,' said Helminadia. ‘There are large numbers of stalactites, stalagmites and rock formations in weird and wonderful shapes. ‘Local people believe the ancient gods of China live in this deep place below the earth
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