Huinay Huayna, Peru
The longest day of the trek is 17km and starts with a short climb where the Incan ruin of Runcu Raccay is located. It is believed to have been constructed as a rest place for travellers and has a direct view to two other Incan constructions so may also have been used for communication. Another extended uphill section passes two lakes, where a deer is sipping water.
The top of the second pass marks the 'pretty much all downhill from here' point. I scramble up a ...