- During an extended cold nap in Wolfenschiessen, Switzerland, Rainer Eder photographed Swiss guide Walter Hungerbühler picking his way up a section of nearby Al Kaida icefall. The frigid temps created safe conditions for climbing, a rarity on the frozen 500-foot cascade, and Eder set up across the valley to shoot. "Afterwards, Walter told me he'd heard the whole icefall settle with a whoomph," says the Baar, Switzerland-based Eder. "Frightening if you're climbing, but I didn't even notice." Two days later, after warmer weather moved into the area, the icefall was completely gone. THE TOOLS: Nikon D3s, 300mm f/2.8 lens, ISO 200, f/4, 1/1,000 second
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