The caves are formed by water making its way through a moulin, which is basically a natural bore hole that melts its way from the top of the glacier down to the base. As the water escapes at the base it makes larger and larger caves, and while they are very unstable, the beauty is absolutely incredible. One of the most popular spots to see these glacial caves is the Crystal Cave of Svmnafellsjvkull (CORR) in Skaftafell National Park. The caves are created by the slopes of 6,921 foot tall Vrffajvkull: Iceland’s tallest active volcano. The force of the ice fields moving down its slopes has compressed all air out, making it one of the most incredible spots to capture the beauty on film.
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