These stunning photographs give a unique look inside a melting ice cave in Kamchatka volcano in far east Russia. Sculpted by a hot spring that runs past the volcano, the water has now created a beautiful, translucent tunnel.With its dazzling, sea-green ceilings, one could be fooled into thinking the roof is made from a rare emerald rock. But in actual fact, the striking colours are merely the result of the sun rays penetrating the glacial ice. [Photo/IC]