Bushby aims to cover about 20 miles a day. Awed by the sight of a blond-haired, blue-eyed foreigner, locals nickname him Kurt Cobain. He suffers a stomach infection for months. Close to starving in Patagonia, he attempts to poach livestock, to comical effect. "Everything started to look edible," he says. "I ran after this one cow and drove my machete into her back leg. It bounced off and bent at a 90-degree angle!" The one bright spot on this stretch of the trip: In Medellín, Colombia, Karl meets Catalina, the woman he calls the love of his life.
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