Path of the Maidens of El Hoyal Activity · Guardo, Alto Carrión, Palencia Image of Guardo, not of the place itself. A 12-kilometre circular trail waymarked by the mountaineering federation of Castile and León that sets out from Muñeca and runs through the oak woods and crags around Guardo, punctuated by wooden sculptures. Photo: Alejandro Polanco (CC BY 3.0) What to see and do in Guardo