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Basalt columns
Unusually tall, straight, regular columns.
A 30-meter waterfall framed by tall hexagonal basalt columns, halfway up the Hengifoss trail in East Iceland.
Part of the Hengifoss hike. Standard hiking precautions apply.
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Unusually tall, straight, regular columns.
About 1.2km uphill from the parking lot.
From above the falls you can see far down the canyon.
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Quick answers with safety notes where it matters.