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Routes
Bike touring routes & trails
France
Pays de la Loire
Nantes
Le Temple-De-Bretagne

Mabille Valley Lake – Observatoire le Rocher loop from Le Temple-de-Bretagne

Routes
Bike touring routes & trails
France
Pays de la Loire
Nantes
Le Temple-De-Bretagne

Mabille Valley Lake – Observatoire le Rocher loop from Le Temple-de-Bretagne

Moderate

5.0

(6)

5

riders

Mabille Valley Lake – Observatoire le Rocher loop from Le Temple-de-Bretagne

02:27

40.4km

260m

Cycling

Moderate bike 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: August 22, 2026

Tips

Includes a segment in which cycling is not permitted

After 17.7 km for 186 m

Waypoints

A

Start point

Bus stop

Get Directions

1

15.6 km

Mabille Valley Lake

Highlight • Other

The Lac de la Vallée Mabille, or Lac de Savenay, is a beautiful artificial reservoir that is worth a detour. By bike, you can easily go around the southern part …

Translated by Google •

Tip by

2

20.1 km

Observatoire le Rocher

Highlight • Other

Wonderful landscape. to do from spring (flooded in winter)

Translated by Google •

Tip by

3

24.3 km

This small church is actually an extension of a 14th-century chapel, which is believed to be the current sacristy. The church in its present form was reportedly completed in 1606 …

Translated by Google •

Tip by

4

29.2 km

Marais de la Roche

Highlight • Other

A 335-hectare marsh located just north of Cordemais. This marsh is mostly flooded between November and March, with water levels that can make some paths impassable. You can see many …

Translated by Google •

Tip by

B

40.4 km

End point

Bus stop

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Way Types & Surfaces

Way Types

34.5 km

2.46 km

2.42 km

1.06 km

Surfaces

24.7 km

14.2 km

1.52 km

< 100 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 (90 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Today

Monday 31 August

24°C

14°C

0 %

Additional weather tips

Max wind speed: 9.0 km/h

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

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