travellers ' walking track 's been used by travellers for centuries . Sign - posted route is an easier equivalent to the famed GR20 hiking trail . Accommodation ranged from small auberges to privately - run hotels . In the seaside resort of Porto a 16th century Genoese tower stands nearby .
Sentiers de Transhumance track 's been used by shepherd for centuries . Sign-posted route is an easier equivalent to the famed GR20 hiking trail . Accommodation ranged from small auberges to family-run hotels . In the seaside resort of Porto a 16th Century Genoese tower stands guard .