Diving the Amoco Cadiz Wreck
Site Overview
Amoco Cadiz Wreck is a wreck and reef dive site in Brittany, France, reached from the base town of Porspoder. The Amoco Cadiz was a supertanker that broke up off the Brittany coast in 1978, scattering a debris field of plates and fittings across the seabed. Today the rusting steel is colonised by conger eels, lobsters and cold-water reef life, making it a classic wreck-and-macro dive. The site reaches a maximum depth of 20 m with an average profile around 14 m and a shallow start near 8 m, which places it firmly in the intermediate 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 18 metres, the current is moderate, and the water temperature ranges between 10 and 17 degrees Celsius with moderate surge exposure. The marine community is centred on Conger Eel, European Lobster, Atlantic Cod, Small-spotted Catshark, Pollock, Spider Crab, and the full species list is detailed below for divers planning a trip. Amoco Cadiz Wreck 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 Porspoder with a transfer of about 35 minutes, and divers should check in with a local centre in Porspoder before entering the water. The Amoco Cadiz was a supertanker that broke up off the Brittany coast in 1978, scattering a debris field of plates and fittings across the seabed. Today the rusting steel is colonised by conger eels, lobsters and cold-water reef life, making it a classic wreck-and-macro dive. Plan your profile around a maximum depth of 20 m and an average of 14 m, keeping a close eye on gas and, in the deeper or enclosed sections, on the moderate surge. Buoyancy control matters here: the rock and sand bottom and submerged structures are easily disturbed, and Scattered debris field, Strong tidal current, Limited visibility after swell are real considerations throughout the dive. The wreck and reef topography offers wreck, reef, and the marine life centres on Conger Eel, European Lobster, Atlantic Cod, Small-spotted Catshark, Pollock, 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 Amoco Cadiz Wreck 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
Conger Eel
Conger conger
Best: June, July, August
European Lobster
Hommarus gammarus
Best: June, July, August
Atlantic Cod
Gadus morhua
Best: June, July, August
Small-spotted Catshark
Scyliorhinus canicula
Best: June, July, August
Pollock
Pollachius pollachius
Best: June, July, August
Spider Crab
Maja squinado
Best: June, July, August
Safety & Hazards
- Scattered debris field
- Strong tidal current
- Limited visibility after swell
- Silt and sharp metal
- Cold water hypothermia risk
Traveler Notes
Who is this for?
Amoco Cadiz Wreck suits intermediate 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 wreck, cold-water, intermediate, photography, history 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
Porspoder coast path; Ouessant ferry; Local seafood creperies
Quick Stats
Dive Logistics
- Brest Plongee
- Crozon Subaquatique
- Quiberon Plongee Centre
- Saint-Malo Plongee
- Oceanne Plongee Bretagne
Photography Info
Best for: wide_angle
Nearby Stay
Hotel Oceania Quiberon
Quiberon • 3km away
Hotel Le Continental
Brest • 6km away