The toughest part of the toughest day. On the Inca Trail’s second day’s trekking you reach its highest point – the 4,200 metres high, intimidatingly-named ‘Dead Woman’s Pass’ (or Warmiwañuska’’ if, understandably, you prefer not to used the English title). The hike up is, of course, worth every aching muscle, every breathless step. Original Inca stonework guides you uphill, and to views that appear transcontinental, as the arid Andean highlands start their ripening green surge towards the tropical Amazon Basin. Catch your breath, steady your hand, and snap the photo of a lifetime.