4.3
(680)
5,596
hikers
201
hikes
Bus station hiking trails around Vallée du Costour offer access to a diverse landscape near Brest, France. The region features 120 hectares of woods, meadows, and fields, characterized by deciduous forests and varied ecosystems. Two significant water bodies, including one from an ancient quarry, and numerous wetlands are present. Geologically, the valley includes gneiss layers and a 30-meter cliff overlooking a water basin.
Last updated: May 18, 2026
4.6
(8)
163
hikers
5.93km
01:31
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.6
(7)
26
hikers
7.24km
01:57
100m
100m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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2.7
(3)
15
hikers
8.25km
02:16
140m
140m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(3)
9
hikers
16.3km
04:28
250m
250m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
3.0
(2)
15
hikers
6.23km
01:41
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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A magnificent landscape on both sides!!!
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feet in the water while being in the city.
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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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Moulin Blanc beach is the only fine sand beach in the city of Brest. It was developed over the last century to offer Brest residents a vacation spot close to the city.
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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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There are over 200 hiking routes in the Vallée du Costour that are easily accessible from various bus stations, offering a wide range of options for all skill levels.
Yes, the Vallée du Costour is very inviting for hikers of all levels. Many trails are easily accessible, with 117 routes rated as easy. For a pleasant, gentle walk, consider the Moulin Blanc Beach – Viewing platform loop from Pont de l'Iroise, which offers modest elevation gains and scenic views.
The Vallée du Costour boasts diverse ecosystems, including woods, meadows, and fields. You'll encounter rich flora and fauna, with deciduous trees like chestnut and oak, and a dense understory. The valley is also characterized by two significant water bodies, including one from an ancient quarry, and several streams. A dramatic 30-meter cliff overlooks one of the water basins, adding to the scenic variety.
Yes, the valley holds intriguing historical significance. You can find traces of its past, including old buildings from the Poudrerie du Moulin Blanc (Moulin Blanc Gunpowder Factory) and two wash houses constructed in the early 20th century. These ruins offer a glimpse into the area's industrial heritage.
Absolutely. The Vallée du Costour offers many accessible trails that are suitable for families. The diverse natural environments and historical elements can make for an engaging experience for children. Look for routes with easy difficulty ratings and shorter distances for a family-friendly outing.
Yes, the Vallée du Costour is generally dog-friendly, making it a great place to explore with your canine companion. However, always ensure your dog is kept on a leash, especially in areas with wildlife or near other hikers, and remember to clean up after them.
Many of the routes accessible from bus stations in Vallée du Costour are circular, allowing you to start and end your hike at the same point without needing to retrace your steps. An example is the Moulin Blanc Beach loop from Pont de l'Iroise, which offers a convenient round trip.
The Vallée du Costour is beautiful year-round. Spring and autumn offer pleasant temperatures and vibrant colors, while summer is ideal for enjoying the full greenery. Even in winter, the valley provides a tranquil escape, though some paths might be muddy. Always check local weather conditions before heading out.
The area is highly rated by the komoot community, with an average score of 4.3 stars. Reviewers often praise the surprising natural escape so close to urban areas, the diverse landscapes, and the peaceful atmosphere provided by the modest river winding through the valley.
While the majority of routes are easy to moderate, there are 5 routes rated as difficult for those seeking a greater challenge. For a moderate option that offers more elevation and distance, consider the View of the Bay – Moulin Blanc Beach loop from Pont de l'Iroise, which provides extensive views and a good workout.
For additional details about the Vallée du Costour, including its ecological significance and local attractions, you can visit the official Brest Métropole Tourisme website: brest-metropole-tourisme.fr.


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