I think I agree with
@Nuala, the Baztán is fabuloso. And with a week, you could add on a bit more. I think we all flew in to San Sebastián, whose airport is actually in Irún and is about a 20 minute walk into downtown. Options for the night are the new Irún albergue, hotel or pensión in Irún, or what
@Nuala did, a night in a little old stone hotel with lots of flowerpots in Hondarribia, about a 5 minute bus ride from Irún. Then getting to Bayonne from there is easy. We took the coastal walk as far as St. Jean de Luz and then got on a bus, but you could also go up to Biarritz and easily get to Bayonne from there. You may have already been to Bayonne, but I hadn’t and it is really a beautiful small city.
It will be a lonely walk, I assume, we walked in June and only saw a couple other pilgrims here and there. For more company, you could try the Portugués from Tui or the Inglés, both short options that would work with your time frame.
Or, if the coast is your thing, some days on the Ruta dos Faros including Muxia and Finisterre and back to Santiago!
The first week of the Olvidado, Bilbao to Aguilar de Campoo, has a lot of asphalt, but a lot of it is on bidegoris, the Basque word for bike path. I have Ender´s Olvidado guide translated and am just waiting for him to get back home so he can take a look and then make an English version. With Omicko’s list of accommodations and services, that would be all you would need. I do think that traffic is starting to pick up on the Olvidado, but it wouldn’t have anywhere near the traffic of the Inglés or Portugués.
Always fun to be obsessing about which camino to walk!