The mountains of O Careón form the last stretch of the demanding Camino Primitivo before it joins the Camino Francés to Santiago. This mountain range is of moderate height (798 m, maximum) and the subsoil has special characteristics which make it an area of great geological interest in Spain.
There are an abundance of small mountain rivers which run together into the river Furelos, the final tributary of the Ulla. There are also numerous hill-walking routes through the area, and even the local roads which cross the mountains are of landscape interest.
One of the most outstanding places is the shrine of San Antolín de Toques, surrounded by the forest, or the route to As Fervenzas (Toques), with its drop of some 40 metres beside an old mill.