Scruff, Singletrack? Not so much, some in places but a lot of wider paths / fireroads. Also, you know there’s about 5 varients?? We’ll be riding some today along the coast, it’s the Camino del Norte and is seriously techy in places (steps of death etc!) The first couple of days of the main camino through Roncesvalles and down to Pamplona I use sometimes as climbs and linking trails. They’re nice, narrow but not singletrack.
As with everything that’s on a map you’ll be riding past some cracking singletrack 🙂
Scenery is stunning, food and wine are incredible. The temperatures can be on the warm side in the middle of summer.