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France
Brittany
Vannes

Etang Au Duc

The best walks and hikes around Etang Au Duc

4.6

(980)

5,875

hikers

13

hikes

Hiking around Etang Au Duc centers on Lac au Duc, one of Brittany's largest inland lakes, spanning approximately 5.5 km in length. The region features diverse natural habitats, wetlands, and surrounding forest landscapes and moors, characteristic of the broader Brocéliande area. Trails often follow the lake's shoreline, offering varied terrain with minimal elevation changes.

Best hiking trails around Etang Au Duc

  • The most popular hiking route is GR 37 Along Lac au Duc – Lake au Duc loop from Loyat

Last updated: May 21, 2026

4.6

(29)

179

hikers

#1.

Dukes' Lake – Lake au Duc loop from Taupont

13.5km

03:28

60m

60m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

4.5

(13)

58

hikers

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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5.0

(9)

36

hikers

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Tips from the Community

Desirai
August 6, 2025, View of Lac au Duc

Nice little spot to sit and have a snack peacefully by the water. It's right on the voie verte

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It is one of the largest lakes in Brittany with a length of 5.5 kilometers and a width of between 500 and 900 meters depending on the location. Lake Ploërmel constitutes a habitat of choice for many aquatic and terrestrial species. Otters, frogs, deer, white fish and insects benefit from this space fed by the Yvel. Botany lovers will appreciate the Hydrangea circuit which runs for three kilometers, while running enthusiasts and cyclists take the path which goes around the lake. On the west bank, the water sports center offers a range of sailing or rowing sports, just a stone's throw from the beach.

Translated by Google

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This lake, one of the main bodies of fresh water in Brittany, was developed by monks in the 12th century. The flora and fauna are rich.

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Mireille
August 21, 2023, Lac aux Ducs

perfect stopover for hikers at the campsite with swimming in the lake.

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Patrick
August 26, 2022, Lac au Duc

Picnic tables available

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Frequently Asked Questions

What types of hiking trails can I find around Etang Au Duc?

Etang Au Duc offers a diverse network of trails, primarily easy to moderate, suitable for various fitness levels. You'll find everything from short, easy strolls with lake views to longer circuits that encompass the entire lake. Many trails follow the shoreline, offering continuous scenic views, while others venture into the surrounding wetlands and forest landscapes characteristic of the broader Brocéliande region. In total, there are over 100 hiking routes to explore.

Are there any easy, short walks suitable for families or beginners?

Yes, Etang Au Duc has several easy and short options perfect for families or those new to hiking. For instance, the Picnic area with lake view – Lake au Duc loop from Ploërmel is an easy 3.1 km (1.9 miles) trail that can be completed in under an hour, offering excellent lake views. These shorter routes provide a great way to experience the area's beauty without a significant time commitment.

What are the most notable natural features or attractions to see while hiking?

The most prominent feature is Lac au Duc itself, one of Brittany's largest inland lakes, offering picturesque backdrops. A unique attraction is the Hydrangea Walk, a 3 km circuit showcasing 5,300 hydrangea plants of various species, providing a changing palette of colors from spring to autumn. Sections of the GR®37 long-distance path also run alongside the lake, offering magnificent views, and you might spot local wildlife like otters or deer in the diverse wetlands.

Are there any circular hiking routes around the lake?

Yes, circular routes are a highlight of hiking around Etang Au Duc. Many trails are designed as loops, allowing you to experience varied scenery without retracing your steps. A popular moderate option is the Lake au Duc – Duke's Lake loop from Taupont, which is 13.6 km (8.5 miles) and provides continuous scenic views through varied habitats. There's also a more challenging 14-15 km path that circles the entire lake, offering a longer stroll with minimal elevation changes.

What is the typical elevation gain on trails around Etang Au Duc?

Hiking trails around Etang Au Duc are generally characterized by minimal elevation changes, making them accessible to a wide range of hikers. For example, the GR 37 Along Lac au Duc – Lake au Duc loop from Loyat, a 14.8 km (9.2 miles) moderate route, has an elevation gain of only about 83 meters. This makes the area ideal for those seeking scenic walks without strenuous climbs.

Can I bring my dog on the hiking trails?

While specific regulations can vary, many trails around Etang Au Duc are generally dog-friendly. It's always recommended to keep your dog on a leash, especially in areas with wildlife or near other visitors, and to clean up after them. The open nature of many paths around the lake makes them pleasant for walks with canine companions.

What do other hikers say about the trails in Etang Au Duc?

The hiking experience around Etang Au Duc is highly regarded by the komoot community, with an average rating of 4.6 stars from over 800 reviews. Hikers often praise the continuous scenic views of the lake, the well-maintained paths, and the diverse natural habitats. Many appreciate the accessibility of the trails for various fitness levels and the overall peaceful atmosphere.

Are there opportunities for other outdoor activities besides hiking?

Absolutely. Etang Au Duc is a hub for various outdoor activities. Beyond hiking, you can enjoy golf, a wide array of boating options including windsurfing, sailing, canoeing, and kayaking, as well as fishing (it's recognized as one of France's best sites for long pole fishing). Water skiing, wakeboarding, and stand-up paddleboarding are also popular, and there are designated areas for children's games and picnics.

What is the best time of year to visit Etang Au Duc for hiking?

Etang Au Duc offers pleasant hiking experiences throughout much of the year. Spring and autumn are particularly beautiful, with the Hydrangea Walk showcasing vibrant colors. The minimal elevation changes make trails accessible even in cooler months. Summer is also popular, though it can be busier with other water activities. Always check local weather conditions before heading out.

Are there any long-distance paths that pass through Etang Au Duc?

Yes, sections of the GR®37, a renowned long-distance path, run alongside Lac au Duc. This offers hikers the chance to experience magnificent views of the lake as part of a larger trekking adventure. For example, the GR 37 Along Lac au Duc – Lake au Duc loop from Loyat incorporates a portion of this famous route.

Where can I find more information about the broader Brocéliande region?

Etang Au Duc is situated within the broader Brocéliande region, known for its mythical forests and rich natural tapestry. For more general information about the area, including its history and other attractions, you can visit the official Brittany Tourism website: brittanytourism.com.

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