Russian ice caves

[knocker]

These amazing images reveal a kaleidoscope of colours in icy caves underneath a glacier.

 

The rainbow caves are given their various colours by light refracting through the ice - with the thicker the ice, the more emerald they appear.

 

And a photographer, from Kamchatka, in the Russian Far East, also decided to add his own take - by lighting flares and breathing fire to turn the normally blue hues into dark reds.

 

http://www.dailymail.co.uk/sciencetech/article-3040173/The-rainbow-stuck-inside-ICE-CAVE-Amazing-images-reveal-kaleidoscope-colours-created-fire-flare-deep-underground.html