Crystal Cave of Svmnafellsjvkull in Skaftafell national park, Iceland
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( P6 K$ U! f+ G% ]tvb now,tvbnow,bttvbNature at its best: Created by the awesome forces of the Vatnajvkull ice cap in the south of the volcanic island, the deep blue cave was formed by the glacier meeting the coastline8 n9 l; w6 g. J9 W7 Q Y! z# u: D
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Changing size: Accessible through a 22-foot entrance on the shoreline, the cave tapers to a tight squeeze at the end no more than four feet high |