The huge Reserva Nor Yauyos-Cochas is an iconic Andean smorgasbord of glimmering blue-green mountain lakes nestled within towering peaks and home to the Pariacaca Glacier. You’ll need your own 4WD vehicle (rent one in Lima or Huancayo) to get there.
The entrance, half an hour west of Jauja on the Lima road, is at Pachacayo.
