Best lakes around Saints-Geosmes are situated in the Haute-Marne department of France, near the town of Langres. This region is known for its artificial reservoirs, originally created to supply the canal connecting the Marne and Saône rivers. These lakes now serve as destinations for various water-based activities and relaxation. The landscape features wooded hills and diverse aquatic environments.
Last updated: July 1, 2026
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A very beautiful circular route around Lac de la Liez, whether on foot or by bike.
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easy place to walk, nice view mixed with nature
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Lac de la Mouche is surrounded by forests and villages where you can admire views of the water and wildlife, as well as the impressive semi-viaduct dam that holds back the lake. The trail is easy and well marked, and you can access it all year round.
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You can walk along the shore of the first of the three pools, dedicated to nature and water activities. You will enjoy the views of the lake and the village, and you may spot some of the migratory birds that frequent this preserved space. The Lac de Charmes circuit is an excellent option for your running.
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From Champigny Bay, you can admire the view of the water, forest and wildlife all along the route.
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Lac de la Liez beach is a sandy beach which offers a beautiful view of the lake and the dam. You can swim in the lake when the green flag is raised, which means the water quality and safety are good. The beach also has a solarium, volleyball court, playground and picnic area. A first aid station and toilets will make your task easier. The beach is open from June to September, from 1:30 p.m. to 7 p.m.
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Lac de la Mouche is surrounded by forests and villages where you can admire views of the water and wildlife, as well as the impressive semi-viaduct dam that holds back the lake. The trail is easy and well marked, and you can access it all year round.
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From Champigny Bay, you can admire the view of the water, the forest and the wildlife all along the way.
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The region around Saints-Geosmes is known for its four main artificial reservoirs: Lac de la Liez, Lac de la Mouche, Lac de Charmes, and Lac de Villegusien (also known as Lac de la Vingeanne). Each offers unique features and activities, from water sports to nature observation.
Yes, several lakes offer excellent trails. Lake Mouche features a 7 km trail around its perimeter, suitable for hiking and mountain biking. Lac de la Liez has a 16 km path, and Lac de Villegusien offers an 8 km trail. Lac de Charmes also has hiking trails, including a discovery circuit. For more options, explore the hiking routes around Saints-Geosmes.
Liez Lake Beach is a popular choice, offering a sandy beach with supervised swimming during summer, a playground, and picnic areas. Lac de Charmes and Lac de Villegusien also provide supervised bathing in July and August, along with pedal boating and other water activities suitable for families.
Lac de la Liez is a hub for water sports, offering sailing, canoeing, windsurfing, pedal boat rentals, water skiing, and a floating water park. Lac de Villegusien has a nautical base where you can try canoeing, catamarans, paddleboarding, and even e-foil. Lac de Charmes is also great for pedal boating and canoeing.
Absolutely. Fishing is a very popular activity across the lakes. Lac de la Liez is known for pike and carp, while Lake Mouche is ideal for carp fishing in a tranquil setting. Lac de Charmes attracts anglers with pike, pike-perch, and carp. Lac de Villegusien also offers good fishing spots.
Lake Mouche is considered the most natural of the four lakes, with clear waters, diverse vegetation, and rich aquatic and bird life, including rare species. Lac de Villegusien is also a significant stopover for migratory birds, making it an excellent spot for ornithologists.
The lakes around Saints-Geosmes are artificial reservoirs, initially created over a century ago to supply the canal connecting the Marne and Saône rivers. This engineering feat transformed the landscape and now provides recreational opportunities while maintaining their original purpose.
Yes, there are several scenic viewpoints. The dam at Lac de la Liez offers a beautiful view of the fortified site of Langres. Champigny Bay provides stunning views of the water, forest, and wildlife. The trail around Lake Mouche also offers picturesque views of the lake and surrounding villages.
Yes, the 16 km path around Lac de la Liez is popular for cycling. You can also explore the surrounding areas of Lac de Villegusien with electric bikes and scooters available for rent. For more cycling adventures, check out the cycling routes around Saints-Geosmes.
The lakes are popular year-round, but the summer months (June to September) are ideal for swimming and water sports, with supervised bathing available. Spring and autumn offer pleasant temperatures for hiking, cycling, and nature observation, especially for birdwatching during migration periods.
Yes, Lake Mouche is notable as the only one of the four Langres lakes where diving is permitted, offering guided underwater tours to explore local legends.
Liez Lake Beach provides amenities such as a solarium, volleyball court, playground, and picnic area, along with a lifeguard station and toilets. Other lakes with supervised swimming areas, like Lac de Charmes and Lac de Villegusien, also offer basic facilities during the summer season.


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