
Berlengas & Peniche · Portugal · Cave & cavern · Reef
Cova do Sono
The archipelago's simplest dive, 6 m average in a sheltered bay
Area photo: Alexkom000 · CC BY 4.0
Cova do Sono is described as the simplest dive in the Berlengas: a sheltered bay whose shallow water often reaches just 2 metres, with an average depth of 6 and a maximum of 12. Cave galleries in the granite house large forkbeards and lobsters, and the rock formations either side are full of cracks and crevices worth working slowly.
Where it is and how deep
No published position for this site — the map shows Berlengas & Peniche and its other sites; operators know the mooring.
The dive
This is the shelter dive of the archipelago. The bay is shallow enough that parts of it reach just 2 metres, the average depth over the dive is around 6 and the deepest point is 12, so the constraint is cold and gas rather than no-stop time. It is called the simplest dive in the Berlengas and is accessible for divers of all experience levels, which here is worth stating plainly.
The interest is in the rock rather than in the depth. Cave galleries run into the granite and house large forkbeards, with lobsters backed into the same shade, and the formations either side are cut with numerous cracks and crevices. That rewards a slow pace and a torch: covering ground quickly gets you nothing here, while working one wall properly will fill a dive at 16 to 20 degrees.
Marine life and season
- Macro critters
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Off-season | Off-season | Off-season | Fair | Good | Prime | Prime | Prime | Good | Fair | Off-season | Off-season |
Season follows Berlengas & Peniche: Jun–Sep is the practical season; Atlantic swell and 14°C water shut the crossing for most of the rest of the year.
Questions divers ask
What is the easiest dive in the Berlengas?+
Portugal Dive calls Cova do Sono the simplest dive in the archipelago: a sheltered bay with an average depth of 6 metres and a maximum of 12, accessible for divers of all experience levels.
Sources
- Cova do Sono dive site — Portugal Dive
More dive sites in Berlengas & Peniche
Canyons and underwater arches beside a dog-shaped rock
Reef
A platform at 25 m on the north side before the drop to 40 m
Cave & cavern
Two caves and a wall, with fresh water on the ceiling
Wall of blue and purple gorgonians to 32 m on the outer islets
Reef
Sand, a small cavern and a broken wreck, all inside 15 m
Wreck
Boilers of a 1931 French steamer at 22 m
Wreck
The 1930 Nelson Line liner lost on Farilhão Grande
Red wall of soft coral where the current pulls pelagics in
Similar dives elsewhere
Cave & cavern
Ponta da Piedade Caves
Algarve · Portugal
Linked tunnel passages under the Ponta da Piedade rock
More than ten lava arches strung between 5 and 10 m
Lava arches at 14 to 18 m on the edge of the marine reserve
A tunnel in at 8 metres, out at 18


