Svartifoss (Icelandic for "black waterfall", Icelandic pronunciation: [ˈsvar̥tɪˌfɔsː] ) is a waterfall in Skaftafell in Vatnajökull National Park in Iceland, and is one of the most popular sights in the park. It is surrounded by dark lava columns, which gave rise to its name.

The base of this waterfall is noteworthy for its sharp rocks. New hexagonal column sections break off faster than the falling water wears down the edges.

These basalt columns have provided inspiration for Icelandic architects, most visibly in the Hallgrímskirkja church in Reykjavík, and also the National Theatre.

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  Svartifoss in summer
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  Bulb
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  Long exposure photograph of the Svartifoss waterfall

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• Information about hiking routes in Skaftafell, including Svartifoss.

• List of columnar basalts in Iceland
• List of waterfalls in Iceland