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A sailboat crossing the Gulf of Ajaccio with the city and harbour skyline behind it.

Mediterranean · France

Corsica — Ajaccio & Sagone

Granite rock heads, arches and a P-51 wreck in the gulfs of Ajaccio and Sagone

Photo: Myrabella · CC BY-SA 3.0

Ajaccio is the west-coast capital of Corsica, and the diving is split between two gulfs: the Gulf of Ajaccio itself, worked by a centre at Porticcio on its south shore, and the Golfe de Sagone about 35 km north-west, with its own centre on Sagone beach. The ground is granite rock heads, arches and drop-offs. E Sette Nave on the south side of the gulf has arches and caves, La Tête de Mort rises from 40 m to the surface, a fighter aircraft lies on sand at 19 m, and Pointe Loca off Sagone is a run of tunnels and vaults to 40 m.

About diving in Corsica — Ajaccio & Sagone

This is two small hubs on one coast rather than one dive town. Maeva Plongée at Porticcio, on the south shore of the Gulf of Ajaccio, runs its exploration dives across the whole gulf between the Sanguinaires islands and Capo di Muro, and the beach opposite the centre serves for discovery dives and training to about 10 m. Sagone Plongée works from the main beach at Sagone, about 35 km north-west by road, with its own boat, training and night dives. Sites are reached by boat from each centre, and a diver based in Ajaccio should expect a drive to Sagone for the second set of sites. Both centres run discovery dives and the French federation and PADI ladder.

The terrain is granite: rock heads rising from 40 m to the surface at La Tête de Mort, three emergent rocks at Les Trois Frères stepping down through plateaus at 6, 12 and 20 m, and arches, caves and drop-offs at E Sette Nave and La Campanina. Pointe Loca in the Golfe de Sagone is a run of tunnels and vaults to 40 m. The one wreck is an aircraft: a fighter fuselage on sand at 19 m off the gulf's south shore, wings silted in, which the Porticcio centre identifies as a 31st Fighter Group P-51 Mustang lost on 5 July 1944. Site logs name groupers, moray eels, lobsters, dentex, seabream and nudibranchs on the Ajaccio rocks, groupers and barracuda at Loca, and posidonia meadows at Banc Provençal.

The area suits a diver who is already in Ajaccio and wants rock diving without a fixed itinerary, or a family with beginners in the group: both centres run discovery dives and the plateaus at 6 to 20 m are within Open Water reach. It suits less well anyone after one concentrated destination. Calvi, with the B-17 wreck and the Revellata secs, sits under a single harbour, Lavezzi off Bonifacio offers habituated grouper at Mérouville, and the Golfe de Valinco around Propriano has its own centres and a denser set of secs; all three are better for a week built around diving. The Scandola reserve north of Sagone is not part of this area: scuba diving is banned throughout its marine zone.

Best time to dive Corsica — Ajaccio & Sagone

Corsica — Ajaccio & Sagone season rating, sea surface temperature, daytime high and rainfall by month, 2011–2025 averages
JanFebMarAprMayJunJulAugSepOctNovDec
SeasonOff-seasonOff-seasonOff-seasonFairGoodPrimePrimePrimePrimeGoodFairOff-season
Sea surface14°C57°F14°C57°F14°C57°F15°C59°F18°C64°F22°C72°F25°C77°F26°C79°F24°C75°F22°C72°F19°C66°F16°C61°F
Daytime high15°C59°F16°C61°F18°C64°F22°C72°F25°C77°F31°C88°F34°C93°F34°C93°F30°C86°F25°C77°F21°C70°F16°C61°F
Rain125 mm4.9 in113 mm4.4 in114 mm4.5 in85 mm3.3 in66 mm2.6 in33 mm1.3 in22 mm0.9 in14 mm0.6 in64 mm2.5 in122 mm4.8 in159 mm6.3 in125 mm4.9 in
Corsica — Ajaccio & Sagone season rating, sea surface temperature, daytime high and rainfall by month, January to June, 2011–2025 averages
JanFebMarAprMayJun
Off-seasonOff-seasonOff-seasonFairGoodPrime
Sea surface
14°C57°F14°C57°F14°C57°F15°C59°F18°C64°F22°C72°F
Daytime high
15°C59°F16°C61°F18°C64°F22°C72°F25°C77°F31°C88°F
Rain
125 mm4.9 in113 mm4.4 in114 mm4.5 in85 mm3.3 in66 mm2.6 in33 mm1.3 in
Corsica — Ajaccio & Sagone season rating, sea surface temperature, daytime high and rainfall by month, July to December, 2011–2025 averages
JulAugSepOctNovDec
PrimePrimePrimeGoodFairOff-season
Sea surface
25°C77°F26°C79°F24°C75°F22°C72°F19°C66°F16°C61°F
Daytime high
34°C93°F34°C93°F30°C86°F25°C77°F21°C70°F16°C61°F
Rain
22 mm0.9 in14 mm0.6 in64 mm2.5 in122 mm4.8 in159 mm6.3 in125 mm4.9 in

2011–2025 averages. Sea surface: NOAA Coral Reef Watch, measured at the surface, so deeper water can run colder. Daytime high and rain: NASA POWER.

West-coast centres run roughly April to November; the sea is above 20 °C from June to October and averages under 14 °C in February.

Best months: June, July, August, September

Ajaccio, Corsica water temperature and weather by month

The sea surface runs from 14 °C (57 °F) in February to 26 °C (79 °F) in August. It is 24 °C (75 °F) or warmer from July to September. Most rain falls from October to March, peaking at about 160 mm (6.3 in) in November; June to August are the driest. Daytime highs reach 34 °C (93 °F) in August and drop to 15 °C (59 °F) in January. The coldest water here is about 13 °C (55 °F), so pack a 7 mm suit with a hood, or a semi-dry.

Dive types & marine life

Groupers are named most often, logged at E Sette Nave, Les Trois Frères and Pointe Loca, alongside moray eels, lobsters, dentex and seabream on the Ajaccio rocks, nudibranchs at Les Trois Frères and barracuda at Loca. Nothing here is a habituated colony like Mérouville, so plan for granite scenery first and treat sightings as a bonus. Best from June to October, when the water is warmest.

  • Reef
  • Wall
  • Cave & cavern
  • Wreck
  • Night
  • Groupers
  • Barracuda
  • Nudibranchs

Best dive sites in Corsica — Ajaccio & Sagone

Sand and rock from the surface to 30 m in clear water

0–30 mintermediate

Rock heads rising from 40 m to the surface

to 40 mintermediate

Depths from 10 to 40 m in clear water off Ajaccio

10–40 mintermediate

Plateaus at 6, 12 and 20 m before the drop-offs

0–35 mintermediate

Cave & cavern

Tunnels and vaults in the rock down to 40 m

to 40 mintermediate

Red volcanic rock from 10 to 35 m near Cargèse

10–35 mintermediate
  • E Sette Nave

    Headland on the south side of the Gulf of Ajaccio with arches, caves and drop-offs; groupers, morays and lobsters.

How to get to Corsica — Ajaccio & Sagone

Ajaccio Napoléon Bonaparte Airport has flights from Paris, Marseille, Nice and Brive, and ferries from Marseille, Toulon and Nice reach the port almost daily. A car helps: the Ajaccio centre is at Porticcio on the south shore of the gulf, and the Sagone centre is on the beach at Sagone, about 35 km north-west.

Photo credits

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