Among the geological heritage of the Courel Mountains Geopark we have a large number of ravines and karst caves, many of which allow the practice of sports, always with the help of expert guides and with the necessary permits, since most of them are in territory protected by the Natura 2000 Network.
The rivers flowing in a terrain with alternating rocky layers of different resistance to erosion give rise to the formation of deep ravines with countless waterfalls and pools, very attractive places for canyoning.
In the case of caving, there are caves suitable for beginners, such as the Cova da Ceza, in Noceda, to those that require an advanced technical level, such as the Sima Aradelas, in Campelo, the deepest in Galicia and in which 2 km of new galleries have just been explored, proof that there is still much to discover in these mountains.