The pine and oak forests of the Oca pass Nature · Villafranca Montes de Oca, Montes de Oca, Burgos The ridge is walked among plantation pine woods and native oak forest, with an undergrowth of ferns and heather. The thickness gave the stretch its medieval fame, held to be the most dangerous of the Camino because of assaults by bandits. Photo: Lucas Martínez Farra… (CC BY-SA 3.0) What to see and do in Villafranca Montes de Oca