Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Mountain biking trails
France
Pays de la Loire
Saint-Nazaire
Savenay

Mabille Valley Lake – The Blue Hole loop from Savenay

Routes
Mountain biking trails
France
Pays de la Loire
Saint-Nazaire
Savenay

Mabille Valley Lake – The Blue Hole loop from Savenay

Moderate

4.3

(3)

13

riders

Mabille Valley Lake – The Blue Hole loop from Savenay

01:50

26.2km

140m

Mountain biking

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: May 15, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 4 m for 8 m

After 67 m for 10 m

After 26.1 km for 10 m

After 26.2 km for 8 m

Waypoints

A

Start point

Train Station

Get Directions

1

2.75 km

Mabille Valley Lake

Highlight • Lake

Lac de la Vallée Mabille, more commonly known as Lac de Savenay, is a beautiful body of water located at the eastern entrance to the town of Savenay. Artificial, the lake hosts many activities on its shores: a swimming pool, a campsite, a leisure park, a golf course and a hotel-restaurant.

Very famous among the locals, this little green setting is also a delight for long-distance hikers. Indeed, the iconic GR 3 meanders along its banks.

Translated by Google •

Tip by

2

2.95 km

View of the Countryside

Highlight • Viewpoint

3

5.78 km

Far west

Highlight • Other

4

13.9 km

The Port House

Highlight • Cafe

This beautiful residence, which currently houses a crêperie, served as a model for the Maison dans la Loire, a work that can be seen in Couëron.
The small port in question, once very busy, appears quiet but is not lacking in charm. A beautiful path, suitable for mountain biking or gravel bikes, follows the Syl River to the hamlet of Pavillon.

Translated by Google •

Tip by

5

16.0 km

The Blue Hole

Highlight • Structure

Three old granite quarries, abandoned in 1980, which naturally filled with water to form beautiful blue ponds, popular with fishermen. Many of the cobblestones of Nantes and Nazaire streets come from this place.

Translated by Google •

Tip by

B

26.2 km

End point

Train Station

Loading

Way Types & Surfaces

Way Types

14.7 km

4.22 km

3.77 km

2.39 km

1.04 km

120 m

Surfaces

9.58 km

5.38 km

4.58 km

3.64 km

2.98 km

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (60 m)

Lowest point (0 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Thursday 9 July

37°C

21°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

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

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Moderate

4.4

279

Mabille Valley Lake – Creek Downhill/mountain loop from Savenay

03:09h

39.3km

400m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy