<p>Athabasca cave is located on the edge of Canada's Athabasca Glacier, near the Columbia Icefield. During the day, visitors experience sculptural, blue-hued ice formations. Those who brave the cold night can sometimes see auroras above the sprawling ice.</p>

Athabasca Cave, Canada

Athabasca cave is located on the edge of Canada's Athabasca Glacier, near the Columbia Icefield. During the day, visitors experience sculptural, blue-hued ice formations. Those who brave the cold night can sometimes see auroras above the sprawling ice.

Photograph by Juan Pablo de Miguel Moreno, Aurora

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