From Santander I headed west into Cantabria. I travelled by bus except for the last day. I very happily walked, and it was my favourite day of all. Santillana del Mar is a pretty little medieval town. Despite it’s name (del Mar) it is not on the sea. The first building I encountered was a convent. If a convent gate is open I always like to peak in. Why? To see if there are nuns cookies for sale. Sure enough I was rewarded with a tempting assortment of baked goods displayed on glass shelves. I debated the options with the help of a couple from Prague who came off the…