Time-travelling in Cantabria: from the stone age to Sartre via the ‘prettiest town in Spain’

On the north coast of Spain you can see some of the world’s oldest art, explore a stunning medieval village, then watch surfers ride Atlantic swellsExploring the area west of Santander feels like being in a time machine. Within a half-hour drive of the Cantabrian capital on Spain’s green northern coast, you can stumble upon prehistoric cave art, a perfectly preserved medieval town and a laid-back beach resort.When I began my weekend trip, it was raining, so my journey started in the Upper Paleol...