Guide to hiking the famous Torres Del Paine W Trek, Patagonia

The first leg of the trail is reached by crossing Lago Pehoé, a lake of such vibrant turquoise that people crowd the stern of the catamaran I stand on, paralysed by the awe its surreal hue weaves. Tiny particles of silt, formed from glacial erosion that become suspended in water runoff, cause the lake to appear cloudy and lends it a turquoise colour, which has come to be known as “glacial milk.