I've just booked tickets for a week long trip starting in Bilbao. I want to split the week into two parts. I have given two days to Bilbao itself, but am more interested in spending the remainder of the week touring from a base outside of the city, anywhere up to about 2 hours away.
I have considered Santander, San Sebastian and Soria (the latter mainly because it would allow me a day trip to Zaragoza, which has been on my "to do" list for some time).
I can see the merits of all three towns, but want to make my decision based on the day trips I can do from there, and am not coming up with much. Can anyone suggest which of these areas would give me the best options for day trips? Looking mainly for character/historical towns and scenery.