I'm off to Santiago de Compestilla in September. Nice. We only have a few days and a couple of these will be spent going bog-eyed looking at Romanesque churches. One day will be for rock art hunting if I can find enough places to visit. The other option will be to 'nip' into Portugal and 'do' some tombs.
Any pointers on north Spanish rock art sites? I know there's loads out there, I just need to know where!