Diving the Plougrescant Granite Quarry

16m Max

8-16m Vis

shore

Site Overview

Plougrescant Granite Quarry is a quarry and training dive site in Inland France, France, reached from the base town of Plougrescant. The Plougrescant granite quarry is a flooded site in Brittany, a calm, enclosed pool with clear, cold water. It is used for training, with perch and crayfish among the submerged granite. The site reaches a maximum depth of 16 m with an average profile around 10 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 inland freshwater coast: visibility generally runs from 8 to 16 metres, the current is mild, and the water temperature ranges between 10 and 16 degrees Celsius with low surge exposure. The marine community is centred on European Perch, Common Roach, Stone Crayfish, European Eel, Tench, Common Rudd, and the full species list is detailed below for divers planning a trip. Plougrescant Granite Quarry is a strong representative of why Inland France 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 Inland France 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 a shore entry near Plougrescant, and divers should check in with a local centre in Plougrescant before entering the water. The Plougrescant granite quarry is a flooded site in Brittany, a calm, enclosed pool with clear, cold water. It is used for training, with perch and crayfish among the submerged granite. Plan your profile around a maximum depth of 16 m and an average of 10 m, keeping a close eye on gas and, in the deeper or enclosed sections, on the low surge. Buoyancy control matters here: the rock bottom and submerged structures are easily disturbed, and Enclosed quarry, Cold water, Limited access are real considerations throughout the dive. The quarry and training topography offers quarry, and the marine life centres on European Perch, Common Roach, Stone Crayfish, European Eel, Tench, Common Rudd alongside the other species listed for the site. Take a moment to review the site-specific hazards with your guide, because conditions at Plougrescant Granite Quarry 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."