Oil from the olive trees of the Sil Food and drink · Larouco, Valdeorras, Ourense Image of Larouco, not of the place itself. The centuries-old olive trees that grow on the sunny slopes of Larouco, above the canyon of the Sil, gave oil for domestic consumption for centuries; their recovery is recent after decades of abandonment. Photo: Estevoaei (CC BY-SA 4.0) What to see and do in Larouco