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Quatre Vaux Beach – Port of Notre-Dame du Guildo loop from Saint-Cast-le-Guildo

Routes

Running trails & routes

Quatre Vaux Beach – Port of Notre-Dame du Guildo loop from Saint-Cast-le-Guildo

Hard

4.5

(4)

104

runners

Quatre Vaux Beach – Port of Notre-Dame du Guildo loop from Saint-Cast-le-Guildo

01:53

16.0km

210m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

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

Waypoints

Start point

Bus stop

Get Directions

1.92 km

Bay Point

Highlight • Other

Superb view over the bouchots to the large rock of Saint Jacut.

Translated by Google •

Tip by

2.11 km

Mussel park

Highlight • Other

unobstructed view of the bouchots

Translated by Google •

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4.14 km

Quatre Vaux Beach

Highlight • Beach

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

Translated by Google •

Tip by

6.24 km

At the foot of a pleasant tea room, the port of Notre-Dame du Guildo offers beautiful views of the castle on the other side of the Arguenon. You can observe it with tea in hand or cross the bridge to explore its ruins.

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7.97 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 and womanizer who lived a merry life, hence the expression "courir le guilledou" (to go on a woman hunt). But his brother, Duke Francis I of Brittany, suspected Gilles of plotting and had him imprisoned. Because he didn't die fast enough, he was then strangled. Before his death, however, Gilles subjected his brother to divine judgment, and the duke also died, tormented by remorse.

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14.0 km

Long climb at the end.

Highlight • Other

15.8 km

Pen Guen Beach

Highlight • Beach

This beach is undoubtedly the most beautiful in Saint Cast. Wide and gently sloping, facing the Ebihens islands. Heaven !

Translated by Google •

Tip by

16.0 km

End point

Bus stop

Way Types & Surfaces

Way Types

6.43 km

6.02 km

1.59 km

1.21 km

357 m

348 m

< 100 m

Surfaces

6.43 km

4.20 km

3.58 km

1.34 km

241 m

124 m

Elevation

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

Weather

Tuesday 1 September

26°C

12°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Comments

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Quatre Vaux Beach – Port of Notre-Dame du Guildo loop from Saint-Cast-le-Guildo

Bay Point

Mussel park

Quatre Vaux Beach

Coastal Path

Port of Notre-Dame du Guildo

View of Gilles de Bretagne Castle from Pont René Pleven

Long climb at the end.

Pen Guen Beach

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