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Routes
France
Brittany
Dinan
Saint-Cast-Le-Guildo

Guildo Castle – Quatre Vaux Beach loop from Saint-Cast-le-Guildo

Routes
France
Brittany
Dinan
Saint-Cast-Le-Guildo

Guildo Castle – Quatre Vaux Beach loop from Saint-Cast-le-Guildo

Moderate

2

riders

Guildo Castle – Quatre Vaux Beach loop from Saint-Cast-le-Guildo

02:03

33.0km

300m

Gravel riding

Moderate gravel 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: March 22, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional Vallée de la Rance - Côte d'Émeraude

Waypoints

A

Start point

Bus stop

Get Directions

1

822 m

View of the Bay

Highlight • Viewpoint

2

3.79 km

3

23.8 km

Around the Apple Trees

Highlight • Natural

4

24.3 km

Le Guildo

Highlight • Settlement

The clean houses are in a side street on the left (when you drive to the ruin). So don't rush!

Translated by Google •

Tip by

5

24.9 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

6

25.0 km

It's worth it!

Highlight • Other

Super break leg climb from the east and impressive view of the mouth

Translated by Google •

Tip by

7

25.9 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

28.6 km

Quatre Vaux Beach

Highlight • Beach

A small cove-shaped beach open to oyster beds and bouchots. Magnificent !

Translated by Google •

Tip by

B

33.0 km

End point

Bus stop

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Way Types & Surfaces

Way Types

15.4 km

8.45 km

5.11 km

2.97 km

1.08 km

Surfaces

14.7 km

9.14 km

7.84 km

1.17 km

132 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 (70 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Thursday 21 May

28°C

16°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

to get more detailed weather forecasts along your route

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

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