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In the centre of the Hérault, Lac du Salagou spreads out 750 hectares of turquoise water surrounded by red hills. This artificial lake, created in the 1960s, owes its distinctive colour to ruffe, an iron-rich clay rock that tints the landscape in shades of ochre and brick. Swimming, sailing, mountain biking and carp fishing all come together here in an almost Martian setting.
To sleep as close as possible to this freshwater lake, nothing beats a lakeside campsite right on the shores of the Salagou.
| Fact | Detail |
| Surface area | Around 750 hectares. |
| Filled with water | 1969, following work that began in 1964. |
| Bedrock | Ruffe, a red clay rock dating from the Permian period. |
| Swimming | Small beaches dotted around the lake. |
| Boating | Sailing permitted, petrol engines banned. |
| Fishing | Category 2 lake, known for its carp. |
Lac du Salagou is entirely man-made: it’s the result of a dam built on the Salagou river, in the centre of the Hérault. Work began in 1964, and the lake was filled in 1969, sped up by torrential rain that filled the reservoir halfway in just three days. The lake now covers almost 750 hectares.
Its visual signature comes from the ground itself. Ruffe, this red rock made up of clay and iron oxides, dates back to the Permian period, almost 250 million years ago. The contrast between the blue water, the ochre hills and the black basalt of the plateau has earned the site its nickname of “Martian landscape”. The nearby Cirque de Mourèze completes this rocky scenery with its dolomite formations sculpted by erosion.
The little extra: park on the Celles side, this partly abandoned village on the shore of the lake. The view over the peninsula and the red hills is spectacular here at sunset, when the ruffe seems to catch fire. A spot that locals happily keep to themselves, away from the busier beaches on the northern shore.
Lac du Salagou lives to the rhythm of the water and the fresh air. Its leisure appeal is reflected in the variety of activities on offer, spread all around its 750 hectares. Here are the main ones:
One detail makes all the difference: petrol-powered boats are banned to protect the natural environment. Only sailing and electric motors are allowed. As a result, the atmosphere remains calm and quiet, far from the bustle of larger, motorised lakes.
Our team often points this out: “At the Salagou, people come for the silence as much as the swimming. No roaring outboard motors, just the lapping of the water and the wind in the sails.”
Looking for a peaceful stay, between swimming and red landscapes? Discover our waterside campsites nearby in the Hérault!
Yes, swimming is permitted at Lac du Salagou, at the small beaches dotted around the lake. The fresh water warms up nicely in summer, making for pleasant swims. Some areas are developed and supervised in season, while others remain wilder and quieter.
No, petrol-powered boats are banned on Lac du Salagou to protect the natural environment. Only sailing, windsurfing and electric motors are permitted. This rule preserves the site’s tranquillity and explains the peaceful atmosphere found around the lake’s 750 hectares.
The red earth around Lac du Salagou comes from ruffe, a clay rock made up of clay sediments and iron oxides. This rock dates back to the Permian period, almost 250 million years ago. It’s what gives the site its ochre hills and its nickname of an almost Martian landscape.
Lac du Salagou offers swimming, sailing, windsurfing, carp fishing and mountain biking around the lake. Hikers head to Mont Liausson or the Rouens peninsula for the view. Two water sports centres run sailing activities across the lake’s 750 hectares.
