Banks of the Tambre in Sigüeiro Nature · Oroso, Ordes, A Coruña Image of Oroso, not of the place itself. The Tambre marks the southern edge of the concello and forms at Sigüeiro a wooded corridor of alders and ash trees fitted out with riverside walks, a refuge for otters at the gates of Santiago. Photo: Luis Miguel Bugallo Sánchez (user Lmbuga) (CC BY-SA 3.0) What to see and do in Oroso