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Saint-Malo's ramparts – Guildo Castle loop from Saint-Briac-sur-Mer

Routes

Bike touring routes & trails

Saint-Malo's ramparts – Guildo Castle loop from Saint-Briac-sur-Mer

Hard

4.8

(12)

riders

Saint-Malo's ramparts – Guildo Castle loop from Saint-Briac-sur-Mer

05:15

83.9km

730m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The route includes a crossing by ferry. The starting point of the route is accessible with public transport.

Last updated: August 26, 2026

This route includes a ferry crossing

Tips

Includes a ferry crossing

Check ferry timetable.

After 8.07 km for 1.97 km

Waypoints

Start point

Bus stop

Get Directions

2.11 km

Saint-Lunaire Seafront and Villas

Highlight • Beach

The history of Saint-Lunaire goes back a long way, from its beginnings to the 6th century. But the aura of the fashionable seaside resort that the city still has today is more recent and owes much to the initiative of Sylla Laraque, a wealthy entrepreneur who financed the construction of the casino at the end of the 19th century, the Grand Hotel and many of the build magnificent villas, a power plant and tennis courts. Aristocrats, manufacturers and statesmen, writers, painters and artists come to Saint-Lunaire.

Translated by Google •

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7.76 km

Anse du Bec de la Vallée

Beach

10.4 km

Saint-Malo's ramparts

Highlight • Monument

Facing the port, it is the entrance to the inner city. The ramparts are very well preserved and offer remarkable views.

Translated by Google •

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21.5 km

Le Moulin Neuf

Highlight • Other

40.2 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 François I of Brittany, had imprisoned and murdered for quarrels over inheritance and prestige.

Translated by Google •

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41.1 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.

Translated by Google •

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41.3 km

Route et piste de la Petite Suisse

Highlight (Segment) • Other

Nice quiet gravel trail through the forest

Tip by

55.8 km

Baie de la Fresnaye

Highlight • Beach

Located in the east of the Côtes d'Armor, on the Emerald Coast, the Bay of La Fresnaye is a foreshore of approximately 900 ha, favored for shellfish farming and in particular the cultivation of mussels and oysters. Its hydrographic perimeter is part of that of the SAGE Arguenon bay of Fresnaye, representing 20% of the surface of the latter. A flat and semi-enclosed bay, its relatively clear waters are a key factor facilitating the proliferation of green algae. Ulva type Ulva and other opportunistic algae such as Pylaiella littoralis are present and synonymous with the high trophic level of the bay.

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56.2 km

Beach

81.4 km

Frémur Viaduct, Saint-Briac-sur-Mer

Highlight • Other

This bridge allows you to cross the Frémur estuary, the natural border between Ille-et-Vilaine and Côtes-d'Armor.

Translated by Google •

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83.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

41.6 km

18.0 km

7.98 km

7.77 km

4.79 km

1.99 km

1.70 km

< 100 m

Surfaces

45.7 km

29.1 km

3.31 km

2.90 km

2.67 km

295 m

Elevation

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

Highest point (80 m)

Lowest point (0 m)

Weather

Tuesday 1 September

26°C

12°C

0 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

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Saint-Malo's ramparts – Guildo Castle loop from Saint-Briac-sur-Mer

Saint-Lunaire Seafront and Villas

Saint-Malo's ramparts

Le Moulin Neuf

Guildo Castle

View of Gilles de Bretagne Castle from Pont René Pleven

Route et piste de la Petite Suisse

Baie de la Fresnaye

Frémur Viaduct, Saint-Briac-sur-Mer

Nearby routes

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