I have plans to do a section of this route next month (June 2018) from Peso de Pegua (where the railway line crosses) to Ourense. I shall be alone. My issue is footwear. I don't want to bring my big clodhopping boots. I have some decent walking sandals (which I used for the Camino Portugues) and some decent walking trainers with no ankle support. How rough is the terrain? Do I need to buy some lightweight boots? Any advice gratefully received.