Inside the glacier-cave: Booming Ice Chasm

[Still Waters]

These are the stunning images which capture the breathtaking beauty of a new world discovered in an ice chasm beneath the Rocky Mountains.

The cave, called Booming Ice Chasm, was named for it's incredible acoustics - as falling rocks crash and 'boom' when they tumble down the 140 metre deep cave.

The crystal clear ice is several meters thick - and explorers say navigating across it makes them feel like they are flying.

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