The GR58 is a rewarding but also strenuous hike. Not difficult, technically, but for sure you will need your perseverance and muscles. The mountains of the Queyras get less rain than the popular Écrins in the west. You will climb high, a handful of passes go over 2.800 m, one is even over 3.000 m. Highlight is the view on the Monte Viso on the Italian side.