Circular path of a demanding route with a multitude of variants and deviations. It passes through places of extraordinary natural value such as the Calvo river forest, classified as a Natural Area of Local Interest.

Walking the route clockwise, you will head towards the Deva river and descend on a cobbled path bordered by a huge fraga (Galician for a mountainous region full of a variety of deciduous species). The unevenness of the river was used to build mills to which the water was diverted through channels called levadas. Leaving the Deva river, you will reach O Feirón and the Pazo del Conde de Cervellón and, later, the stylised church of Santiago in Parada de Achas.

Within the rugged Calvo river basin, shade and moisture create the perfect growing conditions for mosses and lichens. The path is difficult at some points, so we must exercise extreme caution, especially with wet ground.

The PR-G 165.3 variant allows us to access the Coto da Vella summit, joining the Camiño da Raíña, a very old communication route that was supposedly used by Queen Doña Urraca on her trip to A Franqueira.