Las Ubiñas-La Mesa Natural Park Nature · Lena, Caudal, Asturias Image of Lena, not of the place itself. The Las Ubiñas-La Mesa natural park is a protected area of mountains and valleys in the central part of the Cantabrian mountain range, spread across the concejos of Lena, Quirós and Teverga and centred on the Ubiña massif, which rises above 2,400 metres at the Fontán and Peña Ubiña peaks, and on old high-altitude routes such as the Vía de la Carisa or the Camino Real del Puerto de la Mesa, a Roman road. Unesco added it to its worldwide network of biosphere reserves on 11 July 2012. A third of its area is covered by forests of high ecological value, mainly beech woods, and it holds archaeological sites such as the Fresnedo rock shelters and several castros, as well as the Visigothic fortifications of the Homón de Faro, in Lena. Photo: Xuliu Pombar (CC BY-SA 4.0) What to see and do in Lena