This itinerary follows evocative tracks that flank the “rus”, old masterworks of hydraulic engineering: little channels that bring water from streams to cultivated lands. Smooth journeys along channels alternate with steep slopes for testing your leg strength. In the second section of the route we cross bright orchards before entering Aosta, a very charming town dating back to the Roman period. Road-houses in Gignod and Variney, many fountains.