I'm thinking about a trip to northern Spain in mid-May-early June. The original thought was to go between Bilbao and A Coruna, with a car rental in between the two to see the prehistoric caves and do some hiking in Los Picos. The stops in between would be somewhere around Gijon and Ribasellas (maybe- no details yet). My priorities are the hiking and the caves for this trip, although Galicia and Fisterra looked interesting. I'm not religious so only appreciate churches (e.g. Santiago de Compostela) for the history and art. Looking at travel distances, however, it seems like focusing this trip on Bilbao to Asturias might be best unless there are places to stop between Galicia and Asturias that would be worth the effort and make the travel times not that bad. I'll be travelling alone if that makes a difference. Thoughts?
If I skip Galicia this time, somewhere else in the Basque region might make it on the itinerary. Thinking Vitoria-Gasteiz that has been mentioned here unless there is another suggestion, but I don't have an interest in going to San Sebastian/Donostia. Maybe spend more days in Bilbao after dumping the car and do day trips via public transit to Vitoria or ?? (No way do I want to drive in the big cities).