Crystal Cave of Svmnafellsjvkull in Skaftafell national park, Iceland
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2 M! ]$ ]5 j7 d公仔箱論壇Nature 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 coastlinewww2.tvboxnow.com D0 W. g3 i. b. t
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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 |