Diving the Thonon-les-Bains Wall

Site Overview

Thonon-les-Bains The Wall is a wall and altitude dive site in Inland France, France, reached from the base town of Thonon-les-Bains. The Wall at Thonon-les-Bains is a vertical drop in Lake Geneva (Lac Leman) at 372 m altitude, plunging into clear water. Whitefish, perch and trout patrol the wall, and the visibility is excellent. The site reaches a maximum depth of 35 m with an average profile around 20 m and a shallow start near 4 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 inland freshwater coast: visibility generally runs from 8 to 20 metres, the current is mild, and the water temperature ranges between 8 and 18 degrees Celsius with low surge exposure. The marine community is centred on European Perch, Common Whitefish, Brown Trout, Arctic Char, Common Roach, Common Rudd, and the full species list is detailed below for divers planning a trip. Thonon-les-Bains The Wall 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.