In the north of Scoglio di Barettinelli di Fuori, where you will find a lighthouse, some granite rocks emerge from the water.
The diving activity develops around them and in the channel dividing the two reliefs, characterized by piles of boulders and deep fissures. On the northern slope, the rock ends on a detrital seabed at about 25m of depth and the contact areas are characterized by coralligenous environments.
Several routes are possible.
A series of environments characterize the diving spot, starting from the upper areas covered with photophilic seaweeds (including Caulerpa racemosa), where shoals of salema porgies, mullets, and wrasses graze. Then we pass to the shady areas until we reach the deepest ones, where we find a coralligenous environment. This environment is formed by red gorgonians (Paramuricea clavata) with their red branches offering hospitality and shelter to many other organisms.
The ravines offer shelter to big codfish and several morays.
On the detrital bottom there are evident ripple marks formed by the currents, that are a constant feature of the environments of the Archipelago.