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Cannon at Pointe de l'Isle – Guildo Castle loop from Pléboulle

Routes

Bike touring routes & trails

Cannon at Pointe de l'Isle – Guildo Castle loop from Pléboulle

Hard

5.0

(2)

riders

Cannon at Pointe de l'Isle – Guildo Castle loop from Pléboulle

04:07

61.4km

570m

Cycling

Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is right next to a parking lot.

Last updated: March 24, 2026

Tips

Includes a segment that goes up or down a series of steps

You may need to carry your bike.

After 13.5 km for 10 m

Waypoints

Start point

Parking

Get Directions

11.7 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 …

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13.4 km

Cannon at Pointe de l'Isle

Highlight • Monument

The tip of the Isle looks out over the Atlantic, placid. There you will find a semaphore, an orientation table, and a cannon dating from the mid-18th century. Legend has …

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25.3 km

Route et piste de la Petite Suisse

Highlight (Segment) • Other

Nice quiet gravel trail through the forest

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27.5 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 …

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28.4 km

It's worth it!

Highlight • Other

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

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28.5 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 …

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32.8 km

La Banche Beach

Highlight • Beach

Due to the extreme tidal difference at this part of the channel, the lovely beaches are only good for bathing a couple of hours around high tide. At low tide …

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36.3 km

Beaussais Beach and Bay

Highlight • Beach

Beaussais Beach in Trégon is located at the bottom of Lancieux Bay. It is a beach which, alongside those of nearby Saint-Jacut, struggles to compare. At the bottom of the …

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61.4 km

End point

Parking

Way Types & Surfaces

Way Types

34.7 km

12.3 km

6.14 km

4.86 km

2.31 km

1.14 km

< 100 m

Surfaces

31.7 km

19.6 km

7.69 km

2.33 km

101 m

< 100 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

Friday 29 May

21°C

14°C

0 %

Additional weather tips

Max wind speed: 17.0 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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Cannon at Pointe de l'Isle – Guildo Castle loop from Pléboulle

Saint-Cast

Cannon at Pointe de l'Isle

Route et piste de la Petite Suisse

View of Gilles de Bretagne Castle from Pont René Pleven

It's worth it!

Guildo Castle

La Banche Beach

Beaussais Beach and Bay

Nearby routes

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