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Road cycling routes
France
Finistère
Morlaix
Commana

Drennec Dam – Huelgoat Lake loop from Ar Yun

Routes
Road cycling routes
France
Finistère
Morlaix
Commana

Drennec Dam – Huelgoat Lake loop from Ar Yun

Hard

23

riders

Drennec Dam – Huelgoat Lake loop from Ar Yun

03:36

71.9km

1,130m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: September 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional d'Armorique

Waypoints

A

Start point

Parking

Get Directions
1

4.52 km

Drennec Dam

Highlight • Lake

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.

Translated by Google •

Tip by

11.0 km

Gîte d'étape Communal

Alpine Hut

3

24.3 km

4

32.4 km

Chapelle Saint-Herbot

Highlight • Religious Site

5

32.5 km

Small café in Saint-Herbot

Highlight • Other

6

39.6 km

Huelgoat Lake

Highlight • Lake

Beautiful view of Lac de Huelgoat.

Translated by Google •

Tip by

7

39.8 km

Huelgoat

Highlight • Other

Huelgoat is located in the heart of the regional natural park of Armorica on the edge of a lake and above all very close to the natural site of Chaos …

Translated by Google •

Tip by

8

55.7 km

Trédudon Pass

Highlight (Segment) • Other

Fantastic little pass, nice to climb, not steep at all, and really pretty

Translated by Google •

Tip by

B

71.9 km

End point

Parking

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Way Types & Surfaces

Way Types

62.6 km

8.43 km

714 m

214 m

< 100 m

Surfaces

70.2 km

1.58 km

201 m

< 100 m

< 100 m

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Elevation

Elevation
Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (360 m)

Lowest point (80 m)

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Weather

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Sunday 8 November

13°C

6°C

-- %

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