Diving Lake Serre-Poncon

Site Overview

Lake Serre-Poncon Submerged Bridge is a altitude and archaeology dive site in Inland France, France, reached from the base town of Savines-le-Lac. Lake Serre-Poncon is a high-altitude reservoir at about 780 m where an old bridge and village were submerged. The clear, cold water preserves the stonework, and trout and char patrol the site. The site reaches a maximum depth of 35 m with an average profile around 22 m and a shallow start near 8 m, which places it firmly in the advanced category and means divers should hold at least an Advanced Open Water certification. Conditions are typical of the French inland freshwater coast: visibility generally runs from 8 to 18 metres, the current is moderate, and the water temperature ranges between 8 and 16 degrees Celsius with low surge exposure. The marine community is centred on Brown Trout, Arctic Char, Common Whitefish, Common Roach, European Perch, Stone Crayfish, and the full species list is detailed below for divers planning a trip. Lake Serre-Poncon Submerged Bridge 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.