South Corsica is a dream destination for scuba diving enthusiasts. Its crystal-clear waters, among the clearest in the Mediterranean, conceal hidden treasures and exceptional biodiversity that promise unforgettable immersions.
Far from the hustle and bustle of land, the underwater world of southern Corsica offers a breathtaking spectacle where nature has preserved its rights. From dizzying drop-offs to mysterious wrecks, underwater canyons and posidonia meadows teeming with life, every dive is a unique adventure.
Get ready to discover seabeds that will literally take your breath away, and understand why diving in Southern Corsica is a must-do experience.
The Bouches de Bonifacio Nature Reserve is the jewel in the crown of diving in Southern Corsica. Spanning 80,000 hectares, it is the largest marine reserve in mainland France, an area where environmental protection has enabled underwater life to flourish spectacularly.
To dive here is to enter a veritable natural aquarium, where Mediterranean flora and fauna unfold in all their diversity and abundance. The clarity of the water, often in excess of 30 metres, enhances the experience, allowing you to fully appreciate the colors and details of this underwater world.
The effectiveness of the protection measures put in place, reinforced by the 2024-2029 management plans, is reflected in a remarkable density of fish. Brown groupers, emblems of the reserve, are particularly numerous and shy, offering divers fascinating close encounters.
Schools of dentex, barracuda and sars are also common, as are a multitude of rock species such as moray eels, conger eels and capons. Posidonia meadows, veritable underwater meadows, are essential nursery areas and home to an abundance of life, from discreet seahorses to protected large nacres.
Diving in the reserve also means becoming aware of the fragility of these ecosystems and the importance of preserving them. Local dive centers play a vital role in raising visitor awareness, reminding them of the strict rules that apply (no fishing, no feeding, no sampling, regulated anchorage zones).
This respectful approach guarantees the site’s longevity and enables every diver to enjoy an authentic experience in the heart of unspoilt nature.
The biological richness of this reserve makes it an ideal study site for scientists tracking the evolution of marine populations in the face of climate change, as highlighted in several publications by the Corsican Environment Office dating from 2024.
At the heart of the Nature Reserve, the archipelago of the Lavezzi Islands is a must-see diving spot in Southern Corsica. This group of granite islets, located halfway between Corsica and Sardinia, is famous for its spectacular rock formations, both above and below the surface.
Underwater, these erosion-polished granite boulders create a unique underwater landscape of arches, canyons, tunnels and scree where marine life abounds. The shallowness of many sites (often between 10 and 25 meters) makes exploration accessible to most levels of diver, while benefiting from excellent light conditions.
The most famous site is undoubtedly “Mérouville” (Sec de Pelu), a shoal where an exceptional concentration of brown groupers has made its home. These majestic fish, which can grow to over a meter in length, are particularly inquisitive and shy, offering memorable interactions for respectful divers.
Other sites, such as Punta de la Vaca and the outskirts of Cavallo Island (not privately owned), reveal a variety of underwater landscapes, with drop-offs covered in red and yellow gorgonians, rifts sheltering lobsters and sandy areas where rays and flying gurnards can be spotted.
Sailing and diving around the Lavezzi are strictly regulated to protect this exceptional environment. Moorings are prohibited in many areas to preserve the posidonia meadows, and ecological buoys are available for authorized dive boats.
It should be noted that sea conditions in the Bouches de Bonifacio strait can sometimes be changeable, and trips to the Lavezzi require a good knowledge of the area and weather conditions. A dive center based in Bonifacio is the best guarantee for discovering these exceptional sites in complete safety and in compliance with current regulations.
The west coast of southern Corsica, particularly between Propriano and Ajaccio, offers spectacular underwater relief, with numerous isolated rocky rises and dizzying drop-offs. These geological structures attract more abundant pelagic life than in the immediate vicinity of the coast, and are often covered withcolorful fixed fauna such as gorgonians and sponges.
These dives, generally deeper and sometimes subject to moderate currents, are best suited to experienced divers (Level 2 or Advanced Open Water minimum).
The Sec des Moines, off the Sanguinaires islands near Ajaccio, is one of the most famous sites. This series of rocky peaks rising from -40 meters to -10 meters below the surface is a veritable concentrate of Mediterranean life.
Schools of barracuda, dentex hunting in the blue, and a high density of moray eels and conger eels in the crevices are common. The walls are carpeted with red and yellow gorgonians, creating a colorful and vibrant decor.
Further south, in the Gulf of Valinco, sites such as Sec de la Pecorella and the Cathedrals also offer memorable diving experiences. The Cathedrals, in particular, feature impressive underwater architecture with arches and narrow passages carved into the rock.
These dives require good buoyancy control and a certain ease of movement in confined spaces. The fact is, these vertical explorations along the drop-offs provide a unique sensation of flight in the deep blue, a particularly striking sense of immensity. The Propriano and Porto Pollo dive centers know these sites inside out, and offer outings to suit every level of diver.
Although the east coast of southern Corsica is reputed to be gentler and less rugged than the west coast, it also boasts some interestingdiving spots that are well worth a visit, offering an alternative to the more crowded sites of the far south. The seabed is often characterized by vast stretches of sand punctuated by rocky plateaus or artificial reefs, creating a variety of habitats.
While it lacks the vertiginous drop-offs of the west, it is nonetheless biologically rich, with a different fauna adapted to these environments.
Off the coast of Solenzara and the Côte des Nacres, several rocky plateaus between -15 and -30 meters attract abundant life. These areas are oases of biodiversity in the middle of sandy expanses.
You can observe schools of sars, sea breams, mostelles and a wide variety of invertebrates (octopus, cuttlefish, nudibranchs). Some of the wrecks that have been deliberately submerged in the area have also created artificial reefs that are gradually colonizing and becoming points of interest for divers.
Further north, near the Etang de Diana, dives often take place on mixed sand and rock bottoms, with a significant presence of posidonia meadows. This is an opportunity toobserve the fauna specific to this habitat, such as the protected great nacres, the discreet seahorses and the schools of salamanders grazing on the posidonia leaves.
It should be noted that visibility on the east coast may be slightly lower than in the far south, due to the influence of coastal rivers, but is generally very good by Mediterranean standards. The diving centers in Solenzara and Ghisonaccia offer trips adapted to these specific conditions, providing a complementary view of the Corsican seabed.
South Corsica ‘s seabed preserves the vestiges of its eventful maritime history. A number of wrecks, accessible to divers of all levels, provide fascinating dive sites, where historical interest is combined with surprising biological richness.
These submerged structures quickly become artificial reefs, attracting a wide variety of flora and fauna to find refuge and food. Diving on a wreck is like taking a trip back in time, while observing nature’s ability to recolonize human structures.
The wreck of the “Pinella”, an Italian coaster sunk in 1965 near Porto-Vecchio, is one of the most accessible (between -8 and -12 meters) and an excellent site for first-time wreck divers or underwater photographers. Relatively well preserved, it’s home to an abundant fauna: schools of castagnoles, sars, conger eels and moray eels in the plates, and sometimes even juvenile groupers.
Its shallow depth allows long, bright dives, ideal for detailed observation.
For more experienced divers (Level 2 minimum), the wreck of the B-17 bomber shot down in 1944 off Calvi Bay (although technically in Haute-Corse, often visited from southern bases) represents an exceptional site. Resting on a sandy seabed at -28 meters, the aircraft is remarkably well preserved, allowing the cockpit, wings and engines to be clearly identified.
It’s a moving dive, steeped in history, where you can still imagine the tragic fate of the crew. Today, the aircraft’s structure is colonized by a rich flora and fauna, adding biological interest to the site’s historical dimension.
Wreck diving entails specific risks, requiring special precautions and, for more advanced explorations, dedicated training. Submerged metal structures may have sharp edges or unstable elements liable to collapse.
Visibility can be reduced inside wrecks, and there is a real risk of snagging equipment or becoming disoriented. Consequently, excellent buoyancy control and air management are essential.
For simple, non-penetration dives around wrecks, basic qualifications (Level 1 or Open Water) are generally sufficient, provided the depth of the site is compatible. However, as soon as you plan to penetrate inside the structure, even for a short distance, specific “wreck diving” training is highly recommended, or even required by some serious dive centers.
These courses teach special webbing techniques to avoid lifting sediments, the use of a breadcrumb line to secure the return, emergency management in confined spaces, and planning procedures specific to this type of diving.
It is also essential to respect the historical and biological integrity of the wrecks. It is strictly forbidden to bring up objects or touch structures, which are often protected as part of the maritime heritage. Similarly, you must avoid disturbing the fauna that has colonized the wreck and made it its habitat.
Diving on a wreck should remain an act of respectful contemplation, a tribute to the history and resilience of marine life. The professional dive centers in South Corsica who organize these outings are the guarantors of this responsible approach.
Diving in Southern Corsica is synonymous with privileged encounters with marine fauna emblematic of the Mediterranean, particularly abundant in protected areas. The brown grouper (Epinephelus marginatus) is undoubtedly the undisputed star of the Corsican seabed.
Once threatened, this majestic fish has benefited from protection measures and is now present in large numbers at many sites, notably in the Bonifacio Reserve. Its natural curiosity and lack of fear of man make for close observation and memorable photographic interactions.
Watching a large grouper (which can exceed 1 meter and 30 kg) evolve peacefully in its environment is a highlight for any diver.
Pelagic predators are also well represented. Schools of barracudas (Sphyraena viridensis), with their silvery sheen and streamlined appearance, create fascinating spectacles when they swim in open water, often close to drop-offs or dry docks.
Dentex (Dentex dentex), recognizable by their bulging foreheads and powerful jaws, are frequently seen hunting close to the bottom, testifying to the health of the ecosystem. Meet these large predators in their natural natural environment gives you the sensation of being immersed in unspoilt wilderness.
Other remarkable species can be found in Corsican waters. The sea unicorn (or triggerfish), with its atypical shape and erectile dorsal fin, is often seen near rocks. Mostelles, discreet fish with distinctive barbels, hide in crevices during the day.
More rarely, you may come across a stingray resting on the sand or, if you’re very lucky, a sunfish (Mola mola) drifting in the open water. Every dive is full of surprises and potential discoveries.
In addition to the large, emblematic fish, the seabed of Southern Corsica is teeming with fascinating, colorful fauna that deserves careful observation. Macrophotography enthusiasts or simply curious divers will find an infinite field of exploration in the rocky crevices, posidonia meadows and sandy areas.
Nudibranchs, those brightly colored and extravagantly shaped sea slugs, are particularly well represented. Species such as the dalmatian dory, the peregrine hervia or the mauve flabelline add bright splashes of color to rock faces or seaweed. Observing them requires a trained eye and a slow dive, but the beauty of these small organisms more than rewards patience.
Cephalopods, such as octopus and cuttlefish, are also common. The common octopus, a master of camouflage, can be difficult to spot, but its changes of color and texture when it feels discovered are always fascinating. Cuttlefish, with their undulating movements and expressive eyes, are often seen hunting in seagrass beds.
Finally, rock fish form the basis of the coastal ecosystem: colorful girelles, intricately patterned serrans, curious blennies poking their heads out of their holes, and so on. Taking the time to observe this teeming micro-life reveals often unsuspected complexity and beauty often unsuspected, complementing encounters with the larger fauna.
The choice of dive center is crucial to the success and safety of your diving experience in South Corsica. Several criteria should guide your selection. Make sure the center is affiliated to a recognized federation (FFESSM/CMAS, PADI, SSI, etc.) and that the instructors hold the required qualifications.
Check the general condition of the rental equipment (regulators, stabilizing jackets, wetsuits) and the apparent upkeep of the boats. A serious center will give paramount importance to safety, and will have emergency equipment on board (oxygen, first-aid kit, VHF radio).
Find out about the center’s philosophy: does it prefer small groups for personalized supervision? Does it offer detailed briefings before each dive? Is it committed to protecting the marine environment?
Online customer reviews can provide useful pointers, but a direct discussion with the center’s team remains the best way to assess their professionalism and teaching approach. Don’t hesitate to ask about their favorite dive sites and how they adapt the outings to the weather conditions and diver’s level.
The location of the center in relation to your accommodation is also a practical factor to consider, but should not be the only criterion. A center that’s slightly further away, but has a reputation for quality and safety, may be worth the extra travel effort .
Finally, compare prices, but beware of abnormally low offers that could conceal compromises on safety or the quality of supervision. A center that is transparent about its prices and services is generally a sign of trust.
The diving season in Southern Corsica generally runs fromApril to October, and even November for the bravest. The best period is often between June and September. These months offer an excellent compromise: the water is pleasantly warm (20-24°C), visibility is often optimal, and tourist numbers are lower than in midsummer, allowing for more serene diving and sometimes lower prices.
July and August are the peak of the season, with very warm water (24-26°C+) and maximum crowds at the most popular sites and on the water in general. Visibility may sometimes be slightly reduced due to summer plankton, but generally remains excellent.
Spring (April-May) offers cooler water (16-19°C), requiring a thicker wetsuit, but rewards divers with vibrant nature and particularly luminous underwater landscapes.
Diving conditions in Southern Corsica are generally favorable, with few strong currents at most coastal sites. However, wind can be a limiting factor. The Libeccio (westerly/south-westerly wind) can cause rough seas on the west coast and in the Bouches de Bonifacio.
Dive centers adapt their outings according to weather forecasts, favoring sheltered sites when the wind is blowing. It is therefore advisable to be flexible in your diving program and to trust the local professionals to choose the sites best suited to the day’s conditions.
No, absolutely not! Southern Corsica offers magnificent sites for all levels. Beginners can enjoy first dives in sheltered coves rich in life. Level 1 / Open Water divers have access to a multitude of sites between 0 and 20 meters (shallow wrecks, rocky plateaus, gentle drop-offs, etc.).
Advanced divers (Level 2 / Advanced and above) can explore deeper drop-offs, some wrecks or sites with a little more current.
Water temperature varies: around 16-18°C in spring (May), rising to 24-26°C in midsummer (August), then gradually dropping to 20-22°C in autumn (October). A combination of 5mm is generally sufficient from June to September. In spring and autumn, a 7mm or semi-waterproof is recommended.
Diving centers provide all the equipment, but if you have your own, don’t forget your dive computer, a light to explore the faults, and possibly an underwater camera!
It’s subjective, but certain sites come up a lot:
The unmissable dive sites in Southern Corsica offer an exceptional diversity of wrecks, drop-offs and nature reserves, appealing to divers of all levels. Exploring these unique sites allows you to discover a rich and varied marine fauna, guaranteeing memorable and authentic underwater experiences.
Yes, southern Corsica is home to many protected species. The brown grouper is the star, but you can also spot the large mother-of-pearl (Pinna nobilis) in the seagrass beds, the corb (a fish with a golden sheen), and if you’re lucky, loggerhead turtles or dolphins (more likely to be seen on the surface during boat trips).
Some rare species of nudibranchs are also present. These species must be observed with the utmost respect, without direct interaction.
Yes, southern Corsica has many quality diving centers, mainly concentrated in Porto-Vecchio, Bonifacio, Propriano, Campomoro and Ajaccio. We strongly recommend booking your dives in advance, especially in July and August when demand is very high. Contact the centers a few days (or even weeks for peak periods) before your stay to discuss your level, your wishes and availability.
Prices are in line with the average for diving destinations in the French Mediterranean. Expect to pay around 50-70€ for an exploration dive (including boulder and east, sometimes full equipment), 60-80€ for a first dive, and 350-450€ for a Level 1 / Open Water course.
Packages for several dives are often offered, making the unit cost more advantageous. Considering the quality of the sites and the training provided, value for money is generally excellent.
