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Guildo Castle – Saint-Cast loop from Plancoët

Routes

Bike touring routes & trails

Guildo Castle – Saint-Cast loop from Plancoët

Moderate

4.4

(5)

riders

Guildo Castle – Saint-Cast loop from Plancoët

02:48

40.4km

330m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 15, 2026

Tips

Includes a segment in which cycling is not permitted

After 22.8 km for 156 m

Waypoints

Start point

Train Station

Get Directions

7.20 km

Guildo Castle

Highlight • Castle

The ruins of the Château du Guildo rise above the mouth of the Arguenon.
The castle was once the property of Prince Gilles of Brittany, whom his own brother, Duke …

Translated by Google •

Tip by

8.08 km

View of Gilles de Bretagne Castle from Pont René Pleven

Highlight • Viewpoint

From the bridge, enjoy the view of the ruins of the castle on the right bank of the Arguenon. In the 15th century, Gilles van Bretagne lived here, a poet …

Translated by Google •

Tip by

8.29 km

Route et piste de la Petite Suisse

Highlight (Segment) • Other

Nice quiet gravel trail through the forest

Tip by

10.5 km

Chemin Vert du Petit Train

Highlight (Segment) • Other

Rides great, as long as you can go down anyway.

Translated by Google •

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15.4 km

Matignon

Highlight • Settlement

The town was born in the 11th century around a castle built by the lord of Matignon, whose heiress married Étienne Gouyon in the 12th century. It was a descendant …

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16.3 km

Squirrels' Path

Highlight (Segment) • Trail

Lane reserved for pedestrians and cyclists between Saint Cast and Matignon parallel to the departmental road

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23.1 km

Saint-Cast

Highlight • Settlement

Saint-Cast is rightly considered one of the most beautiful coastal towns in northern Brittany: one and a half kilometers of white sandy beach on the Grand Plage (or Plage des …

Translated by Google •

Tip by

25.2 km

View! Pointe de la garde

Highlight • Other

40.4 km

End point

Train Station

Way Types & Surfaces

Way Types

11.1 km

8.05 km

7.03 km

5.34 km

4.65 km

4.09 km

163 m

Surfaces

23.6 km

7.36 km

7.03 km

1.96 km

286 m

177 m

Elevation

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

Highest point (70 m)

Lowest point (0 m)

Weather

Tuesday 30 June

22°C

14°C

-- %

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Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Guildo Castle – Saint-Cast loop from Plancoët

Guildo Castle

View of Gilles de Bretagne Castle from Pont René Pleven

Route et piste de la Petite Suisse

Chemin Vert du Petit Train

Matignon

Squirrels' Path

Saint-Cast

View! Pointe de la garde

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