National Geographic News

Svartifoss, Iceland

Photograph by Giacomo Ciangottini

Svartifoss (Black Fall) is surrounded by the dark lava columns that gave rise to its name. The hexagonal columns were formed inside a lava flow that cooled extremely slowly, giving rise to crystallization. Skaftafell National Park, Iceland.

(This photo and caption were submitted to the 2012 National Geographic Traveler Photo Contest.)