Recently there was long thread about the BCA. I can now post possible answers to some of the questions, such as "Why is the BCA still raising membership prices when there is a significant amount still left in its coffers?"
Near Albarrac?n (respectively 4km/2.5mi and 6km/4mi south) are two caves, El Callej?n de Plou and the Cueva del Navazo, with interesting prehistoric paintings, including hunting scenes.