The upper basin of the Grindelwald glacier.

The ice is in the large prints malleable or plastic, breaks but quickly broken in train, and so caused the glacier fractures and crevasses how those seen in this picture of the Arctic Ocean, the upper basin of the Grindelwald glacier before Absturze in the lower section of the valley. They are the most dangerous obstacle when walking on the glacier, especially when fresh snow partially hides the eye. Therefore, great care the high tourists and their guides, connected by the rope often wind through a maze of columns, towers of ice and ice needles or through deceptive snow bridges must pass through the column to reach the goals. (Photo by: Carl Simon/United Archives/Universal Images Group via Getty Images)