The terraces of the Avia valley Nature · Leiro, Ribeiro, Ourense Image of Leiro, not of the place itself. Dry stone terraces stepped above the river Avia which have supported the vineyards since medieval times. This terraced landscape, the work of generations of diggers, defines the appearance of the heart of the Ribeiro. Photo: w:gl:user:Alma (CC BY-SA 3.0) What to see and do in Leiro