Diving Les Rochers de Rotheneuf

Site Overview

Les Rochers de Rotheneuf is a reef and wall dive site in Brittany, France, reached from the base town of Saint-Malo. The Rochers de Rotheneuf are sculpted granite rocks at the mouth of the Rance, continuing underwater as walls and gullies. Conger eels, lobsters and wrasse live in the gullies, and the strong tide brings clear water. The site reaches a maximum depth of 20 m with an average profile around 12 m and a shallow start near 5 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 8 to 20 metres, the current is strong, and the water temperature ranges between 11 and 17 degrees Celsius with moderate surge exposure. The marine community is centred on Conger Eel, European Lobster, Cuckoo Wrasse, Pollock, Small-spotted Catshark, Corkwing Wrasse, and the full species list is detailed below for divers planning a trip. Les Rochers de Rotheneuf 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.