he Rätikon used to be a smuggling trail for blackeners, but today it has become the arena for exceptional alpine climbers. The Austrian extreme sports climber Beat Kammerlander faces his last big challenge, as he says. It is the ascent of the 'battle zone' - here the name says it all. Right next to it Nina Caprez and Barbara Zangerl try their hand at the 'Infinite History. A tough and difficult route that demands everything from the two professional climbers.
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