Diving the Golfe du Morbihan
Site Overview
Golfe du Morbihan is a reef and macro dive site in Brittany, France, reached from the base town of Vannes. The Golfe du Morbihan is a sheltered inland sea of islands and reefs, ideal for training and relaxed macro dives. Wrasse, crabs and small reef fish thrive in the shallow water, and the calm makes it perfect for night dives. The site reaches a maximum depth of 14 m with an average profile around 8 m and a shallow start near 3 m, which places it firmly in the beginner category and means divers should hold at least an Open Water certification. Conditions are typical of the French coastal coast: visibility generally runs from 6 to 16 metres, the current is mild, and the water temperature ranges between 12 and 19 degrees Celsius with low surge exposure. The marine community is centred on Corkwing Wrasse, Cuckoo Wrasse, Conger Eel, European Lobster, Small-spotted Catshark, Spider Crab, and the full species list is detailed below for divers planning a trip. Golfe du Morbihan is a strong representative of why Brittany diving is so highly regarded, blending the geology, history and biodiversity that define French underwater exploration. It pairs naturally with the other sites of the Brittany region for a varied holiday, and with the right thermal protection and, where relevant, the correct specialist training, it offers a memorable dive for photographers, naturalists and wreck or reef enthusiasts alike.
Dive Briefing
"Entry is made by boat from Vannes with a transfer of about 10 minutes, and divers should check in with a local centre in Vannes before entering the water. The Golfe du Morbihan is a sheltered inland sea of islands and reefs, ideal for training and relaxed macro dives. Wrasse, crabs and small reef fish thrive in the shallow water, and the calm makes it perfect for night dives. Plan your profile around a maximum depth of 14 m and an average of 8 m, keeping a close eye on gas and, in the deeper or enclosed sections, on the low surge. Buoyancy control matters here: the rock and sand bottom and submerged structures are easily disturbed, and Very shallow, Mild current, Cold water are real considerations throughout the dive. The reef and macro topography offers reef, and the marine life centres on Corkwing Wrasse, Cuckoo Wrasse, Conger Eel, European Lobster, Small-spotted Catshark, Spider Crab alongside the other species listed for the site. Take a moment to review the site-specific hazards with your guide, because conditions at Golfe du Morbihan can shift with wind and tide and change the feel of the dive. A safe ascent with a surface marker buoy and a clear exit plan completes the dive, with emergency cover routed through Centre Hyperbare, Hopital de la Cavale Blanche, Brest."
Signature Marine Life
Corkwing Wrasse
Symphodus melops
Best: June, July, August
Cuckoo Wrasse
Labrus mixtus
Best: June, July, August
Conger Eel
Conger conger
Best: June, July, August
European Lobster
Hommarus gammarus
Best: June, July, August
Small-spotted Catshark
Scyliorhinus canicula
Best: June, July, August
Spider Crab
Maja squinado
Best: June, July, August
Safety & Hazards
- Very shallow
- Mild current
- Cold water
- Boat traffic
- Variable visibility
Traveler Notes
Who is this for?
Golfe du Morbihan suits beginner divers holding at least an Open Water certification, and it is a strong choice for those who enjoy the French coastal water of the French coast. Photographers, training groups and divers chasing macro, beginner, reef, training will all find something here, provided they respect the temperature, the marine park rules and the limits of each site. It is less suitable for absolute novices unless booked through a centre running a supervised course, and the deepest or most enclosed sections should only be attempted with the correct specialist training and a guide. Planning a dive here with a licensed French operator not only keeps you safe but also helps protect the fragile gorgonian forests, seagrass meadows, wrecks and reefs that make the site special for the next visitor.
For Non-Divers
Golfe du Morbihan boat tour; Vannes old town; Carnac stones
Quick Stats
Dive Logistics
- Brest Plongee
- Crozon Subaquatique
- Quiberon Plongee Centre
- Saint-Malo Plongee
- Oceanne Plongee Bretagne
Photography Info
Best for: macro
Nearby Stay
Hotel Oceania Quiberon
Quiberon • 3km away
Hotel Le Continental
Brest • 6km away