Lakes around Bléruais offer diverse natural landscapes and recreational opportunities within the Ille-et-Vilaine department and the broader Brittany region. While Bléruais itself is a small commune, the surrounding area features several notable lakes. These bodies of water are set amidst forests, moors, and valleys, providing varied environments for outdoor activities. Visitors can explore a range of natural settings, from preserved sites to areas rich in biodiversity.
Last updated: June 24, 2026
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Beautiful pond with a pretty stream
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Beautiful trail near Lake Tremelin
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Very beautiful view, excellent spot for a break or a picnic
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Lost in the lower Brocéliande forest (on the edge of the Paimpont national forest), between the Château de Comper and the Tombeau de Merlin, the Pont Dom Jean pond is a superb body of water, a calm and peaceful place, far from the roads... (broceliande.guide)
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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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L'étang du Pont Dom Jean is a beautiful body of water and a calm and peaceful place. It is located in the Brocéliande between the castle of Comper and the tomb of Merlin.
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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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Among the most popular choices are Lake Trémelin, known for its supervised swimming area and diverse activities, and La Marette Pond, appreciated for its peaceful and tranquil setting with a beautiful stream.
Yes, Lake Trémelin is highly recommended for families. It features a supervised beach for swimming in summer, tree climbing, water sports, playgrounds, and relaxation areas. Pont Dom Jean Pond is also considered family-friendly, offering a calm spot for breaks or picnics.
The lakes around Bléruais offer a variety of outdoor activities. At Lac de Trémelin, you can enjoy swimming, canoeing, kayaking, pedal boating, fishing, and tree climbing. Hiking and cycling are popular around most lakes, including the Étang de l'Étunel and Lac au Duc. For more structured routes, you can explore road cycling routes, MTB trails, and running trails in the wider region.
For magnificent views, visit the Lake Trémelin viewpoint, especially at sunset for clear reflections. Étang de l'Étunel is nestled in the Serein Valley, featuring idyllic moors, red shale rock outcrops, and pretty cascades. Lac au Duc is known for its rich natural environments, wetlands, and diverse wildlife, including otters and deer.
Yes, many lakes offer hiking opportunities. Lac de Trémelin has a 5 km walk around the lake itself, along with other trails through forests and moors. The area around Étang de l'Étunel is popular for hiking and mountain biking, with trails connecting to other natural sites. Lac au Duc features a 15 km path around the lake. You can find various running and walking trails in the broader Bléruais region.
The summer months, particularly July and August, are ideal for activities like swimming at Lac de Trémelin, where the beach is supervised. Spring and autumn offer pleasant temperatures for hiking and cycling, with beautiful foliage changes. The Hydrangea Walk at Lac au Duc is best enjoyed when the flowers are in bloom.
Yes, swimming is permitted at Lake Trémelin, which has a supervised beach with excellent water quality, earning it the Blue Flag label. This is typically available during July and August.
Lac au Duc has historical significance, having been developed by monks in the 12th century. It also features the unique Hydrangea Walk, a 3 km trail showcasing 5,300 hydrangea plants. Near Casse Pond, you can see the 17th-century Casse mill, an old flour mill fed by water from several ponds, including Trémelin.
At Lake Trémelin, you'll find a bar, tables, ping-pong tables, pétanque courts, a yoga area, and playgrounds. Lac au Duc offers extensive recreational facilities including golf courses and various water sports centers. Étang de l'Étunel provides a small wooden cabin for resting.
While specific parking details for each lake are not always listed, popular sites like Lac de Trémelin and Lac au Duc, being major leisure centers, typically offer designated parking facilities for visitors. It's advisable to check local signage upon arrival.
Pont Dom Jean Pond is a beautiful, calm, and peaceful body of water located deep within the Brocéliande forest, between the Château de Comper and the Tombeau de Merlin. It's an excellent spot for a quiet break or a picnic away from main roads.
Yes, mountain biking is a popular activity in the region. The area around Étang de l'Étunel is well-suited for mountain biking, with trails along its shores. You can also explore various MTB trails that pass by or near lakes, such as the 'La Marette Pond – Étang de la Marette loop from Bléruais' or the 'Lake Trémelin – Casse Pond loop from Iffendic'.


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