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Brennilis

Top 6 Lakes around Brennilis

Best lakes around Brennilis are primarily centered around the significant Lac Saint-Michel, an expansive artificial reservoir located within the Monts d'Arrée and the Armorica Regional Natural Park. This region is characterized by its unique landscape of marshes and peat bogs, offering a blend of historical significance and natural beauty. The area provides opportunities for outdoor activities such as hiking and fishing, making it a notable destination for exploring diverse aquatic environments.

Best lakes around Brennilis

  • The most popular lakes is Drennec Dam, a man-made lake that serves as a vital water supply for a large population. This 110-hectare reservoir is fed by the Élorn and Mougaud rivers.
  • Another must-see spot is The Fairies' Pond, a natural monument within the Huelgoat forest. This lake is known for its orange-colored water due to high iron content and is associated with local legends.
  • Visitors also love Huelgoat Lake, a scenic lake popular for various outdoor activities. This location offers opportunities for cycling, mountain biking, hiking, and horse riding.
  • Brennilis is known for both natural lakes and significant artificial reservoirs. The region offers a variety of aquatic environments, from historical reservoirs like Lac Saint-Michel to smaller, picturesque ponds.
  • The lakes around Brennilis are appreciated by the komoot community, with more than 120 photos and over 260 upvotes shared by visitors.

Last updated: June 24, 2026

The Fairies' Pond

Highlight • Lake

La Mare aux Fées is one of the many emblematic places that you will encounter in the mysterious and magical forest of Huelgoat.

There is of course a legend that says fairies came here to comb their long golden hair. Woe to those who surprised them!

The orange color of the water comes from its high iron content. It is one of the particularities - with for example the presence of plants such as the eagle fern, the purple foxglove, or even the broom - that you evolve well on granite soil.

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Drennec Dam

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This 110-hectare reservoir is fed by the Élorn and Mougaud rivers. It is important because 400,000 people depend on this lake for their water supply. These are the inhabitants of the city of Brest Métropole, Landerneau and Landivisiau.

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Huelgoat Lake

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Beautiful view of Lac de Huelgoat.

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Lac du Drennec

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Superb place for a lunch break or for a night stop!

The lake offers water activities and more than pleasant views

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View of Lake Brenilis

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From the heights of the successive Roc'h, you can see the waters of Lake Brenilis.
In gray weather, bursts of light catch your eye as the sun breaks through the clouds to reflect in the lake. It must be said, even if the sun is always pleasant on a hike, the clouds know how to put on a show in Brittany and make the scenery more intense.

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Popular around Brennilis

Tour des Monts d'Arrée in France — the GR 380

MTB Trails around Brennilis

Hiking around Brennilis

Running Trails around Brennilis

Road Cycling Routes around Brennilis

Gravel biking around Brennilis

Cycling around Brennilis

Other adventures around Brennilis

Tour des Monts d'Arrée in France — the GR 380

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Vincent Reboul

Tips from the Community

Loïc
August 6, 2025, Lac de Huelgoat

flat and simple route! accessible to all

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Sarah
April 12, 2025, Lac du Drennec

Very beautiful lake with a beautiful beach and nautical base.

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Gianni
August 8, 2024, Lac de Huelgoat

Very touristy but worth the detour

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Pow
October 15, 2023, View of Lake Brenilis

The big minus of this trail is the passage via the heavily used departmental road.

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Kristian
September 15, 2023, Lac de Huelgoat

Beautiful view of Lac de Huelgoat.

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Mike
August 11, 2023, Lac du Drennec

Plage de Sizum - here is the best beach on the lake.

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According to legend, you can meet fairies here ;-)

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It is said that fairies can be found here

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Frequently Asked Questions

What is the primary lake in the Brennilis area?

The primary and most significant lake in the Brennilis area is Lac Saint-Michel, also known as the Saint-Michel Reservoir. This expansive artificial lake is a central feature of the region, offering a blend of historical significance, natural beauty, and recreational opportunities.

What is the history behind Lac Saint-Michel?

Lac Saint-Michel was created between 1929 and 1937 by constructing a dam on the Elez river. Its initial purpose was to support the hydroelectric plant in Saint-Herbot. Later, from the 1960s to 1985, its waters were also used for cooling the Brennilis nuclear power plant. The lake was formed by flooding former marshes and peat bogs in the Yeun Elez basin.

What natural features can I explore around Lac Saint-Michel?

Lac Saint-Michel is an integral part of the Armorica Regional Natural Park. Its northern section, characterized by marshes and peat bogs, is designated as the Vénec National Nature Reserve. The lake itself is known for its captivating atmosphere, especially when mist rises over its surface, and offers views from elevated points like Tuchenn Kador.

Are there hiking trails around the lakes in Brennilis?

Yes, there are several hiking opportunities. Around Lac Saint-Michel, a popular 15 km circuit known as the 'Yeun Elez' trail encircles the lake, offering scenic views. For more options, you can explore various hiking routes in the region, including the 'Yeun Elez – Brennilis Lake Peatlands loop' or routes near Huelgoat Lake. Find more details on the Hiking around Brennilis guide.

Can I go fishing in the lakes near Brennilis?

Yes, Lac Saint-Michel is a popular spot for fishing. It is home to species such as rainbow trout, pike, and perch. It's classified as a 1st category fishing site, and specific regulations, including permits and catch logs, apply. Fishing is permitted from the shore or by boat, though thermal motors are prohibited.

Are there family-friendly lakes or activities in the area?

Several lakes offer family-friendly environments. Drennec Dam and Lac du Drennec are noted as family-friendly, with the latter featuring a beach and nautical base. The Fairies' Pond is also considered family-friendly due to its natural monument status and local legends. Lac Saint-Michel also provides areas for picnicking and a children's playground.

What cycling opportunities are available near the lakes?

The region offers various cycling routes. Huelgoat Lake is a magnificent place for cycling and mountain biking. You can find routes like the 'Huelgoat Lake – Huelgoat Forest loop' from Brennilis. For more cycling adventures, check out the Cycling around Brennilis guide or the Gravel biking around Brennilis guide.

Can I swim in the lakes around Brennilis?

Swimming is possible in Lac Saint-Michel, though it's worth noting that the weather in the region can be quite cool. Lac du Drennec also features a beach, making it another option for water activities.

What is special about The Fairies' Pond?

The Fairies' Pond is a natural monument within the mysterious Huelgoat forest. It's known for its orange-colored water, which is due to a high iron content, and is associated with local legends of fairies combing their golden hair there. It's an emblematic and magical place to visit.

What is the significance of Drennec Dam?

Drennec Dam is a vital man-made lake covering 110 hectares, fed by the Élorn and Mougaud rivers. It serves as a crucial water supply for approximately 400,000 people, including the inhabitants of Brest Métropole, Landerneau, and Landivisiau.

What do visitors enjoy most about the lakes around Brennilis?

Visitors appreciate the blend of natural beauty and historical significance. The captivating atmosphere of Lac Saint-Michel, especially when shrouded in mist, is often highlighted. The opportunities for hiking, cycling, and fishing, along with family-friendly spots like Lac du Drennec with its beach, are also highly valued. The unique natural environment, including marshes and peat bogs, and the legends surrounding places like The Fairies' Pond, add to the appeal.

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