In the east of Caprera, a deep inlet offers an ideal shelter from the west wind and the northwest wind, and here you will find three diving buoys. In the surrounding area, fishing is not allowed and it is possible to pass through at a speed of no more than 3 miles.
The bottom is characterized by sequences of granite bastions alternating with deep channels characterized by tafoni rocks and high peaks. It is possible to carry our several and varied routes.
If the emerged part of Caprera seems troubled, also the seabed is very lively with granite formations typically standing out and characterized by peaks, bastions, deep falls, and channels. Along the route it is possible to meet shoals of salema porgies, white seabreams, barracudas, and big groupers. From the open sea, often shoals of greater amberjacks or big dentexes come, and barracudas often swim among the reliefs.
In the shady areas, multicolored sponges live and moray eels, scorpionfish, and codfish find shelter. In the upper areas, the reliefs are surrounded by shoals of damselfish, in the depths the setting is dominated by the swallowtail seaperch.