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Josselin Castle – Montertelot Lock loop from Pleugriffet

Routes

Bike touring routes & trails

Josselin Castle – Montertelot Lock loop from Pleugriffet

Hard

4.8

(35)

185

riders

Josselin Castle – Montertelot Lock loop from Pleugriffet

06:55

115km

470m

Cycling

Hard bike ride. 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: May 13, 2026

Waypoints

Start point

Bus stop

Get Directions

30.1 km

Locks 79 to 87 - Around Saint-Gérand

Highlight (Segment) • Other

Sequence of nine locks, seven of which are very close to each other. Boat traffic must have been very slow on this section…

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57.8 km

Cadoret Lock

Highlight • Structure

Beautiful lock on the Nantes-Brest canal

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70.2 km

The castle's imposing towers are reflected in the River Oust. Owned by the Rohan family, one of the oldest families in Brittany, it is the symbol of this pretty town. Plan half a day to stroll through the charming streets of this "petite cité de caractère" (small, particularly picturesque town) and also visit the basilica.

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70.6 km

Blick auf Josselin von Süden her

Highlight • Other

Josselin and its castle look very impressive from afar.
A beautiful sight!

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84.2 km

Montertelot Lock

Highlight • Structure

Chapel of an old monastery right next to the canal and a small park to rest or camp at night

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86.3 km

Former railway bridge over the Nantes–Brest Canal

Highlight • Bridge

Nice crossing of two long-distance cycle routes: the Vélodyssée coastal route which runs along the Nantes to Brest canal and the track between Saint-Malo and Rhuys which takes the old railway bridge.

Translated by Google •

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101 km

Lock-keeper's house

Highlight • Other

Here you will find a lodge, a bicycle repair area and as a bonus a tap to fill your water bottles (at the back of the building).

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102 km

Château de Josselin seen from the Sainte-Croix bridge

Highlight • Castle

Erected at the beginning of the 11th century, the Château de Josselin was once just a simple wooden building. Rebuilt and extended over the centuries, it was modernized by the Rohan family who still live there today.

The castle can be visited and also houses a museum of dolls and toys.

Translated by Google •

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115 km

End point

Bus stop

Way Types & Surfaces

Way Types

92.6 km

10.6 km

7.43 km

2.21 km

1.05 km

850 m

Surfaces

84.0 km

20.9 km

8.06 km

1.81 km

Elevation

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

Highest point (140 m)

Lowest point (20 m)

Weather

Sunday 24 May

32°C

18°C

1 %

Additional weather tips

Max wind speed: 13.0 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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Josselin Castle – Montertelot Lock loop from Pleugriffet

Locks 79 to 87 - Around Saint-Gérand

Cadoret Lock

Josselin Castle

Blick auf Josselin von Süden her

Montertelot Lock

Former railway bridge over the Nantes–Brest Canal

Lock-keeper's house

Château de Josselin seen from the Sainte-Croix bridge

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