The RN-68 forks off the RN-40 only 2km north of Cafayate, north of the Río Chuschas, before heading across fertile land, some of it given over to vineyards. It soon begins its winding descent, following the Río de las Conchas through the QUEBRADA DE CAFAYATE north to the Valle de Lerma and onwards to Salta. The gorge is seen at its best on the way down, in the mellow late afternoon or early evening light; organized tours aim to take you down this way and you should follow suit if travelling under your own steam. Leave plenty of time, as once in the gorge you’ll be tempted to make several stops, to admire the views and take pictures.