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Lake Trémelin – Chambre au Loup Valley loop from Boisgervilly

Routes

Bike touring routes & trails

Lake Trémelin – Chambre au Loup Valley loop from Boisgervilly

Hard

3.0

(1)

riders

Lake Trémelin – Chambre au Loup Valley loop from Boisgervilly

03:10

40.4km

390m

Cycling

Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is accessible with public transport.

Last updated: July 11, 2026

Tips

Includes a segment in which cycling is not permitted

After 15.4 km for 80 m

Waypoints

Start point

Bus stop

Get Directions

14.6 km

Watch out for walkers, but it's a good ride on the second circuit.

Highlight • Other

14.8 km

Lake Trémelin viewpoint

Highlight • Lake

Magnificent view of the lake. When the sun sets behind you, the reflections on the lake are crystal clear.

Translated by Google •

Tip by

16.2 km

Lake Trémelin

Highlight • Lake

Body of water near Rennes
Swimming is allowed in the small supervised area
Other activities are possible such as tree climbing or sailing, but also hiking and of course gravel

Translated by Google •

Tip by

17.3 km

Bois de Putenöe

Forest

20.8 km

Discovered at the end of the 90s, this medieval castle has been the subject of research for many years. Last year it entered a restoration phase. It is a fascinating site to which one can return again and again as the restoration work progresses.

Translated by Google •

Tip by

22.7 km

Le vallon de la Chambre au Loup

Nature Reserve

23.0 km

Chambre au Loup Valley

Highlight • Summit

superb point of view on the pond of Boutavent from the heights on the castle side.

Translated by Google •

Tip by

23.6 km

Vallon de la Chambre au Loup

Highlight • Gorge

A valley with several technical passages.
To do preferably by mountain bike but it goes in gravel.

Translated by Google •

Tip by

30.1 km

Saint-Guillaume Church and Saint-Gonlay Parish Close

Highlight • Religious Site

Construction periods: 16th century, 17th century, 18th century

Translated by Google •

Tip by

35.0 km

The Life of the River

Highlight • River

old mill

Translated by Google •

Tip by

40.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

18.8 km

11.0 km

9.69 km

772 m

115 m

< 100 m

Surfaces

19.1 km

15.5 km

3.49 km

1.69 km

679 m

Elevation

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

Highest point (110 m)

Lowest point (40 m)

Weather

Saturday 11 July

37°C

21°C

0 %

Additional weather tips

Max wind speed: 21.0 km/h

to get more detailed weather forecasts along your route

Comments

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Lake Trémelin – Chambre au Loup Valley loop from Boisgervilly

Watch out for walkers, but it's a good ride on the second circuit.

Lake Trémelin viewpoint

Lake Trémelin

Boutavent Castle Ruins

Chambre au Loup Valley

Vallon de la Chambre au Loup

Saint-Guillaume Church and Saint-Gonlay Parish Close

The Life of the River

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