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France
Brittany
Dinan

Saint-Cast-Le-Guildo

The best MTB trails around Saint-Cast-Le-Guildo

4.2

(86)

376

riders

23

rides

Mountain biking around Saint-Cast-Le-Guildo offers diverse landscapes along Brittany's Emerald Coast. The region features a varied coastline with sandy beaches, secluded coves, and dramatic cliffs, alongside estuaries like the Arguenon. Inland, the terrain transitions to a hilly countryside with wooded valleys and marshlands. This combination provides a range of mountain biking experiences, from coastal paths to more challenging inland routes.

Best mountain bike trails in Saint-Cast-Le-Guildo

  • The most popular mountain bike trail is Marsh bridge – View from Cap Fréhel…

Last updated: May 8, 2026

5.0

(1)

32

riders

#1.

Le Moulin de la Mer Ruins – Trail loop from Pointe du Bay

41.2km

02:51

330m

330m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Popular around Saint-Cast-Le-Guildo

The Customs Officers’ Path – GR 34 between Erquy and Saint-Malo

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The Customs Officers’ Path – GR 34 between Erquy and Saint-Malo

Hiking Collection by

SimonWicart

Tips from the Community

Markus 🇪🇺
August 25, 2025, Le Moulin de la Mer Ruins

Quite nice here 😉 At least for a little picnic and break, as the coastal path is quite challenging.

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At the Cottage

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Beautiful panoramic view over two bays and several islands off the coast.

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Also suitable for gravel

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Yoann
May 25, 2025, Pointe du Chevet

great place ideal for a little family walk

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As you walk through the Salines marsh, you'll cross a charming little wooden bridge. This passage allows you to cross the lagoon formed by the Islet and offers breathtaking views of this ecosystem rich in flora and fauna.

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Nice place with nice descent and climb

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Ruins of a historic mill that was fed by the Ru de Matignon. The mill is not only a popular hiking destination, but can also be easily incorporated into a mountain bike tour. The trails along the Ru de Matignon or from La Forge are absolutely worthwhile.

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Frequently Asked Questions

What kind of terrain can I expect on mountain bike trails around Saint-Cast-Le-Guildo?

The mountain bike trails in Saint-Cast-Le-Guildo offer a diverse mix of landscapes. You'll find coastal paths with stunning sea views and dramatic cliffs, as well as inland routes winding through hilly countryside and bocage (hedged farmland). Estuaries like the Arguenon also feature, providing scenic routes along small roads. This variety means you can experience both challenging climbs and more gentle coastal stretches.

How many mountain bike trails are there in Saint-Cast-Le-Guildo?

There are over 25 mountain bike trails available around Saint-Cast-Le-Guildo, catering to various skill levels. These include a mix of easy and moderate routes, ensuring options for different preferences.

Are there any easy mountain bike trails suitable for beginners in Saint-Cast-Le-Guildo?

Yes, Saint-Cast-Le-Guildo offers several easy mountain bike trails. Out of the total routes, 10 are classified as easy, providing a good starting point for beginners or those looking for a more relaxed ride. These routes often feature less elevation gain and smoother terrain.

What is the best time of year for mountain biking in Saint-Cast-Le-Guildo?

The most popular months for cycling in Saint-Cast-Le-Guildo are typically July and August. However, the diverse landscapes along the Emerald Coast can be enjoyed throughout the warmer months, offering pleasant conditions for mountain biking.

Are there any challenging mountain bike routes for experienced riders?

While there are no trails explicitly rated as 'difficult' in the immediate area, many of the 17 moderate routes feature significant elevation changes and varied terrain that can provide a good challenge for experienced riders. For example, the Muret Point – View from Cap Fréhel loop from La Garde is a 27.9-mile route with over 450 meters of elevation gain.

What kind of natural features and viewpoints can I expect to see along the trails?

The trails often lead to spectacular natural features and viewpoints. You can expect stunning sea views, dramatic cliffs, and picturesque estuaries. Notable highlights include Pointe du Chevet, and various spots offering views of the cliffs and lighthouse at Cap Fréhel. The La Fauconnière Bird Reserve is another natural monument you might encounter.

Are there any loop mountain bike trails in Saint-Cast-Le-Guildo?

Yes, many of the mountain bike trails in Saint-Cast-Le-Guildo are designed as loops, allowing you to start and end at the same point. Examples include the Le Moulin de la Mer Ruins – Trail loop from Pointe du Bay and the Moulin de la Mer Ruins – Muret Point loop from Saint-Cast-le-Guildo.

What do other mountain bikers enjoy most about the trails in Saint-Cast-Le-Guildo?

The mountain bike trails in Saint-Cast-Le-Guildo are highly rated by the komoot community, with an average score of 4.2 stars from over 90 reviews. Riders frequently praise the spectacular coastal scenery, the varied terrain that combines coastal stretches with inland paths, and the well-maintained network of routes.

Are there any historical landmarks or attractions accessible by mountain bike?

Yes, the region offers several interesting landmarks. You can explore routes that pass near historical sites such as Guildo Castle. Additionally, the iconic Cap Fréhel Lighthouse is a prominent feature in the area, often visible from various viewpoints along the trails.

Can I find routes that combine coastal and inland scenery?

Absolutely. Many trails in Saint-Cast-Le-Guildo are designed to showcase the region's diverse landscapes, combining stunning coastal stretches with picturesque inland paths. Routes like the Moulin de la Mer Ruins – Trail loop from Saint-Cast-le-Guildo offer this blend, allowing you to experience both the Emerald Coast and the charming countryside.

Is Saint-Cast-Le-Guildo a good destination for mountain biking with family?

Saint-Cast-Le-Guildo offers a range of trails, including 10 easy routes, which can be suitable for families. These easier options typically have less demanding terrain and elevation, making them more accessible for riders of varying ages and skill levels. Always check individual route details for specific suitability.

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