The best traffic-free bike rides around Vallée du Costour
4.2
(552)
12,211
riders
37
rides
No traffic road cycling routes around Vallée du Costour are situated in Brest, France, offering a diverse landscape for cyclists. This 129-hectare valley features lush forests, serene water bodies, and varied terrain, including areas with chestnut, oak, beech, and maple trees. Cyclists can experience routes with panoramic views of the Rade de Brest and the Anse du Moulin Blanc, alongside historical remnants from its past as a gunpowder factory. The valley also provides coastal access near Plage du Moulin Blanc.
…Last updated: July 13, 2026
4.0
(2)
23
riders
8.68km
00:23
20m
20m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
5.0
(2)
35
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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8
riders
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
3.0
(2)
50
riders
32.5km
01:46
510m
520m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3
riders
26.0km
01:10
140m
140m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
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Popular around Vallée du Costour
Tips from the Community
Very practical... Thank you for this equipment.
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A magnificent landscape on both sides!!!
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There is no road on this viaduct, just a railway! Komoot won't suggest it to you anyway. The road passing at the foot is a fairly large country road but pleasant. When it is not cluttered with brambles, it is possible to take a pedestrian and cycle path bordering the road on the pond side when leaving Le Relecq Kerhuon, up to the first crossroads (direction Le Douvez, Landerneau).
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In the hollow of the valley, a small stream meanders, feeding many ponds and a waterfall. Perfect for recharging your batteries. This arboretum is sumptuous. You will find incredible tree species, sequoias, eucalyptus, magnolias, giant bamboos and an alley planted with absolutely remarkable tree ferns. On the water, a beautiful diversity of birds, cormorants, herons, egrets, ducks, and kingfishers among others. Good walk a stone's throw from the beach and the marina of the marina.
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In the heart of the Vallon du Stang-Alar, the Botanical Conservatory garden is nestled in a former quarry. The 30-hectare site was chosen for its mild climate, steep slopes and the presence of water, which make it an exceptional place where plants from all over the world can be grown. The site is crossed by wide and narrow, stabilized paths, as well as forest trails. Opening hours Conservative garden: open every day from 9:00 a.m. to 6:00 p.m., until 8:00 p.m. in summer.
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Nice view of the bay and easy to drive as no cars can cross this small cycle and pedestrian bridge.
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Natural lake surrounded by trees.
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Nestled in the breathtaking landscape of Brest, it towers majestically above the Élorn - the Pont de l'Iroise. Its impressive silhouette, spanning the river between Le Relecq-Kerhuon and Plougastel-Daoulas, offers both locals and visitors an impressive perspective of the region. As you cycle across the bridge, you are accompanied by a magical panorama: If you look inland, the scenery opens up to a picturesque interplay of land and water. If you look to the other side, your eye will be rewarded with an unforgettable sea view. The bridge is a gift for cyclists. Here, in the flatter part of Brest, cycling is particularly pleasant. There is also a wonderful view of the city from here. The technical specifications of the Iroise Bridge are also remarkable. Located on the RN165, which connects Brest and Quimper, it is one of the most impressive cable-stayed bridges in France. It ranks in the list of main spans just behind the famous Pont de Normandie and the Pont de Saint-Nazaire, but ahead of the imposing Viaduc de Millau. But it's not just their size that makes them a highlight in the region. Photographers particularly appreciate the smaller bridge, which is closed to cars. From here you can capture the imposing Pont de l'Iroise in all its splendor.
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Frequently Asked Questions
How many no-traffic road cycling routes are available in Vallée du Costour?
There are over 35 dedicated no-traffic road cycling routes in the Vallée du Costour, offering a variety of distances and difficulty levels for you to explore.
Are there easy no-traffic road cycling routes suitable for beginners or families?
Yes, the Vallée du Costour offers a good selection of easy no-traffic road cycling routes. For instance, the Moulin blanc loop from Océanopolis is an easy option, covering just over 9 km with minimal elevation gain, perfect for a relaxed ride. Many routes are suitable for families looking for a gentle cycling experience.
What kind of scenery and attractions can I expect on these no-traffic routes?
The no-traffic routes in Vallée du Costour offer a diverse landscape, from lush forests of chestnut, oak, and beech to serene wetlands and water bodies. You can enjoy magnificent panoramas of the Rade de Brest and the Anse du Moulin Blanc, with some routes offering views of the Pont de l'Iroise. Keep an eye out for local wildlife like deer, badgers, and various bird species. The Saint Edern Church, Plouédern – Anse du Moulin Blanc loop from Kerhuon is a moderate route that takes you through varied scenery.
Are there any historical sites to see along the no-traffic road cycling routes?
Yes, the Vallée du Costour has a rich history. As you cycle, you might encounter remnants of the Poudrerie du Moulin Blanc, a former gunpowder factory established in 1876, including old washhouses. The ruins of Moulin du Froutven are another historical attraction along some routes, adding a unique dimension to your ride.
What do other cyclists say about the no-traffic road cycling experience in Vallée du Costour?
The no-traffic road cycling routes in Vallée du Costour are highly rated by the komoot community, with an average score of 4.2 stars from over 400 ratings. Cyclists often praise the tranquil environment, the beautiful views of Brest and its harbor, and the variety of terrain that makes for an engaging ride away from vehicle traffic.
Are there more challenging no-traffic road cycling options for experienced riders?
While many routes are easy to moderate, some sections within the Vallée du Costour can present more challenging terrain, including steeper slopes, especially after rain. For a moderate challenge, consider the Landerneau Viaduct – Beautiful Viewpoint loop from Kerhuon, which covers nearly 47 km with over 400 meters of elevation gain.
Can I find circular no-traffic road cycling routes in the Vallée du Costour?
Absolutely. Many of the no-traffic road cycling routes in Vallée du Costour are designed as loops, allowing you to start and end at the same point. This makes planning your ride convenient. An example is the Gouesnou Church loop from École nationale supérieure de techniques avancées, a moderate 27 km circular route.
What is the best time of year to go road cycling in Vallée du Costour?
The Vallée du Costour is enjoyable for road cycling throughout much of the year. While some trails might be more challenging with steep slopes in winter, they remain practicable in dry conditions. Spring and autumn offer pleasant temperatures and beautiful foliage, while summer provides longer daylight hours. Always check local weather conditions before heading out.
Is there parking available near the no-traffic road cycling routes?
Yes, the Vallée du Costour is a popular area for outdoor activities, and you can typically find parking facilities in nearby towns like Guipavas and Le Relecq-Kerhuon, which provide convenient access points to the various cycling routes within the valley.
Are there any hidden gems or less-known spots along the no-traffic routes?
Beyond the well-known scenic points, the Vallée du Costour holds many natural and historical 'hidden gems.' Exploring the diverse plant species in the Jardin conservateur or discovering the quieter paths through the valley's wetlands can offer a unique experience. The valley's past as a gunpowder factory means there are often unexpected historical remnants to uncover off the main paths.
Are there cafes or places to stop for refreshments near the no-traffic road cycling routes?
Given the Vallée du Costour's proximity to Brest and its surrounding towns like Guipavas and Le Relecq-Kerhuon, you'll find various cafes, bakeries, and restaurants where you can stop for refreshments before or after your ride. The Plage du Moulin Blanc, a notable feature of the area, also has amenities nearby.
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