By Michael Lanza
We follow the Routeburn Track’s winding path through the dense, vibrant greenery of ferns, mosses, and ubiquitous beech trees of the forest in Mount Aspiring National Park, in the southwest corner of New Zealand’s South Island. The track parallels the raging whitewater of the river known as the Route Burn, which crashes thunderously over a train wreck of boulders in its bed, foaming white almost without interruption on its steep course, only occasionally slowing and calming to reveal its emerald color in the rare flat spots in this vertiginous canyon.