Cave of o Oso Nature · Folgoso do Courel, Quiroga, Lugo Image of Folgoso do Courel, not of the place itself. Cavity in the Courel karst in which ceramic remains appeared proving that it was frequented in prehistoric times, one of the many hollows that the limestone has opened beneath these slopes. Photo: Miguel Branco (CC BY-SA 4.0) What to see and do in Folgoso do Courel