Best lakes around Saint-Thurial, located in Ille-et-Vilaine, Bretagne, offer diverse natural landscapes and recreational opportunities. The region features a mix of large lakes with extensive facilities and smaller ponds ideal for specific activities. These bodies of water are set amidst forests, moors, and valleys, providing varied environments for outdoor exploration. Saint-Thurial serves as a gateway to areas like the Brocéliande Forest, enhancing its appeal for nature enthusiasts.
Last updated: July 1, 2026
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Beautiful trail near Lake Tremelin
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Magnificent leisure center with various activities. The tour of the lake is carried out without difficulty by a sandy path for its entire length of approximately 5km.
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On the side of the road you can also see the Casse (or Cast) mill. It is an old flour mill located on the Trémelin stream, downstream from a pond. It dates from the 17th century and stopped working in 1900. It was fed by water from several ponds, including that of Trémelin. (mills-sur-le-meu.e-monsite.com)
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leisure base; numerous hiking and mountain biking routes
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North of Treffendel, Etunel pond is a large body of water appreciated by locals and tourists alike. On the sometimes tight tracks that border its shore, be vigilant when cyclists are busy mountain biking. During capricious weather, a small wooden cabin built at the eastern end of the pond provides rest.
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Very pretty lake. Perfect for a break to eat or refresh. Bar and tables available.
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Magnificent view of the lake. When the sun sets behind you, the reflections on the lake are crystal clear.
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For a wide range of family activities, Lac de Trémelin is highly recommended. It offers supervised swimming, water sports like canoeing and pedal boating, tree climbing courses for various ages, playgrounds, and picnic areas. Bodrais Pond also provides a pleasant picnic spot and opportunities for wildlife observation.
Yes, the region offers excellent hiking. Around Lac de Trémelin, you'll find numerous trails through surrounding forests and moors, suitable for various skill levels. The Retenue de la Chèze area is also known for its picturesque hiking trails, including a moderate 22.9 km mountain biking route that can be hiked. For more options, explore the hiking guide for Saint-Thurial.
The primary spot for swimming is Lac de Trémelin. During July and August, it features a supervised beach with excellent water quality, earning it a Blue Flag label. The water temperature is approximately 20°C during this period.
Yes, the area around the Retenue de la Chèze offers historical interest. Along its hiking trails, you can discover a Roman bridge downstream from the dam and the intriguing 'Red Virgin' painted on a rock. The valley of the Serein, leading to Étang de l'Étunel, is also rich in flora, including royal fern and alder, with a botanical path to explore its diversity.
Bodrais Pond is primarily managed for fishing and is a popular spot for anglers. You can find a variety of species there, including trout, zander, pike, roach, bleak, and carp. Fishing is also permitted at Lac de Trémelin, where daily, weekly, or annual passes can be obtained from the lakeside tourist office.
At Lac de Trémelin, visitors can enjoy various water activities such as canoeing, kayaking, and pedal boating. These are available during the warmer months, typically when swimming is supervised.
Absolutely. Étang de l'Étunel features sometimes narrow tracks along its shore that are popular with mountain bikers. The Retenue de la Chèze also has a moderate 22.9 km mountain biking trail. For more cycling routes, check out the cycling guide for Saint-Thurial.
Yes, Lac de Trémelin is designed with accessibility in mind. During supervised swimming periods (July and August), a floating wheelchair is available, making the beach accessible for people with reduced mobility.
The lakes and their surrounding areas are rich in wildlife. Bodrais Pond is home to diverse fauna including frogs, toads, newts, and various insects like dragonflies and butterflies. The valley around the Retenue de la Chèze offers opportunities to spot birds, hares, wild boars, and deer in its woods and moors.
Yes, Lac de Trémelin has a bar-restaurant and dedicated picnic spots. Bodrais Pond is also an ideal location for a break and a picnic, with tables and benches available.
The best time to visit largely depends on your preferred activities. For swimming and water sports, July and August are ideal due to supervised swimming and warmer temperatures at Lac de Trémelin. Spring and autumn offer pleasant weather for hiking and cycling, with beautiful natural scenery and fewer crowds.
Beyond traditional lake activities, Lac de Trémelin hosts contemporary art exhibitions at 'l'aparté' and various events like shows, concerts, and outdoor cinema during July and August. It also features tree-climbing courses, including a giant zip-line over the water.
Yes, the area offers easy walking trails. Lac de Trémelin has family-friendly walks among its approximately 10 accessible trails. The hiking guide for Saint-Thurial lists several easy routes, such as the 'View of the Valley – Viewpoint overlooking the reservoir loop from Saint-Thurial' which is about 4 km.


Still not found your perfect lake around Saint-Thurial? Check out the guides of these regions to see even more beautiful places.