The Site of Scientific Interest of the Cliff of La Hondura is located in the municipality of Fasnia. This Cliff is formed by an interesting accumulation of castings and pyroclastics of the Series II finalized by a mantle of pumitical materials later coming from the Cañada Series. The Acantilado de La Hondura has an altitude of about 30 meters above sea level and a length of about 2500 meters.

In the area you can find small coves and some barranquillos that will surprise visitors a lot. You can find some threatened species such as the Pineapple of the Sea (Atractylis preauxiana), an endemic species of Tenerife and Gran Canarias. Other more common species are the Sweet Tabaibas, (Euphorbia Balsamifera), Balos (Plovama pendula) Sea lettuces.

With regard to fauna you can find the Cinderella Shearwater, the wild pigeon, the unicolor swallow or the " andoriña"