oh! bad luck! I am leaving to the Balkans on Saturday for a month, otherwise we could had arrange a meeting. Picos is amazing isn't it? However, perhaps I can help you by giving some ideas. For example do you like the movie "the good, the bad and the ugly"? Sad Hill cemetery is in Soria. Or have you visited south of Galicia? Ourense province, south to Xinzo de Limia near Portugal, I love it. Zaragoza people is lovely, but the city has nothing to offer but the cathedral and the virgen del Pilar, patron of Spain. It is worth a visit once in your life and you will never come back. well again, I will be happy if I can help.
greetings Quique