A trip out to the Colca Canyon is on most travellers’ must-do lists while staying in Arequipa, but Michaela plays a blinder by finding a 2-day tour which is linear rather than circular and ends in the place which is, handily, our next destination anyway. So we leave Arequipa in the morning sunshine with the canyon and its resident condors in our minds, hoping we get lucky enough to see one or two. We head now back up into high altitudes, in fact at no time in the next nineteen days will we be below 3,400 metres above sea level. We’ve dubbed this part of the trip “the cold section”…