Navea Canyon Nature · San Xoán de Río, Terra de Trives, Ourense The River Navea, which forms the boundary with A Pobra de Trives, cuts into a gorge with sheer, wooded slopes, one of the most enclosed river landscapes in inland Ourense. Photo: Maiscargadadebombo2 (CC BY 3.0) What to see and do in San Xoán de Río