Actually there are two routes that overlapse from Irun to Estavillo:
- Via de Bayona: Bayonne - Burgos (I've walked this one in summer of 2016)
- Camino Vasco del Interior: Irun - Sto.Domingo de la Calzada.
I haven't heard for marked route to Logrono though.
If you will start in Vitoria/Gasteiz there is a albergue parrochial "de la Catedral" with pilgrim price for first night at 10€.
Next albergue is as mentioned in La Puebla de Arganzon (22,7km from albergue to albergue) which is donativo and has 22 beds.
Next day you have to choose after 6,6km at this spot:
View attachment 36995
Left is for Sto.Domingo and right for Burgos.
If you choose right hand option my stages were:
- Miranda de Ebro - 18,9km (albergue "La Picota", 6€),
- Pancorbo - 17,1km (MUNI, 9€, a bit tricky working hours) - one of the nicest stages on all of my Caminos!!!,
- Briviesca - 23,6km (MUNI, 5€, in an apartment),
- Monasterio de Rodilla - 19,9km (MUNI, "Casa del Medico", 6€, by the motorway, no shop but restaurant 10 meters away),
- Burgos - approx.28km (phone & GPS died).
Buen Camino!