Secret Menu

Enter the password to access the secret menu.

Routes

Planner

Features

Updates

App

Get the komoot app

Join 45 million outdoor enthusiasts: navigate, discover, adventure.

4.8/5

Based on more than 300k user ratings

Download komoot now

Visit the App Store, Google Play or scan the QR code with your phone to download instantly.

Get the App

Get the komoot app

Join 45 million outdoor enthusiasts: navigate, discover, adventure.

4.8/5

Based on more than 300k user ratings

Download komoot now

Visit the App Store, Google Play or scan the QR code with your phone to download instantly.

Saint-Mars-De-Coutais

Grand-Lieu Lake Nature Reserve

Saint-Mars-De-Coutais

Grand-Lieu Lake Nature Reserve

Add your photos to this highlight

Drag a photo here or browse to upload.

Highlight • Other

Grand-Lieu Lake Nature Reserve

Road cycling

4.9

(46)

People Who've Recommended This Place

Benoit l'épi

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Loic

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Yanis Blanchard

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Thibault

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Mathieu Laisné

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Vince

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Didier Roux

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Denis Papin

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Marianne

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Minh Huynh, UK

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Benjamin CHUSSEAU

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Cédric

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Fredo

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Jessy Lhomelet

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Antoine 🆎

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Yves

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Adrien Buet

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Augustin Cros

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Maude

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Hike 4 ever

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

BERNARD

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Matthieu Vera

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

David Baudry

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

MOAD

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Done

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Save

Location: Saint-Mars-De-Coutais, Nantes, Pays de la Loire, France

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Save

See routes here

Take Me There

Tips

Florian

July 27, 2025

Road cycling

Superb walk along the lake

Translated by

•

Routes here

Best routes to Grand-Lieu Lake Nature Reserve

4.4

(90)

867

riders

1. Château des Jamonières – Route de la Berderie loop from Rezé - Pont-Rousseau

66.3km

02:44

280m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Navigate

Send to Phone

Save

How to understand each route’s difficulty level

Hiking

Cycling

Mountain biking

Road cycling

Running

Easy

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Mostly well-paved surfaces and easy to ride.

Moderate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Some segments of this route may be unpaved and difficult to ride.

Hard

More than 5 hours or 3,000 ft. of elevation gain. Requires very good fitness.You may need to push your bike for some segments of this route.

Moderate

4.4

(37)

331

riders

2. The Acheneau – Le Martipontain - Ferry loop from La Chevrolière

47.6km

02:00

170m

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Navigate

Send to Phone

Save

How to understand each route’s difficulty level

Hiking

Cycling

Mountain biking

Road cycling

Running

Easy

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Mostly well-paved surfaces and easy to ride.

Moderate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Some segments of this route may be unpaved and difficult to ride.

Hard

More than 5 hours or 3,000 ft. of elevation gain. Requires very good fitness.You may need to push your bike for some segments of this route.

Moderate

4.4

(14)

174

riders

3. View of the Loire – Place Royale loop from Nantes

55.6km

02:18

240m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Navigate

Send to Phone

Save

How to understand each route’s difficulty level

Hiking

Cycling

Mountain biking

Road cycling

Running

Easy

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Mostly well-paved surfaces and easy to ride.

Moderate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Some segments of this route may be unpaved and difficult to ride.

Hard

More than 5 hours or 3,000 ft. of elevation gain. Requires very good fitness.You may need to push your bike for some segments of this route.

Moderate

Details

Informations

Elevation 50 m

Weather

Wednesday 4 March

19°C

7°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

Change Starting Time

When do you want to start?

To ensure you can rely on your forecast, only the weather data for the next 46 hours is available.

Today

Save

Cancel

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See routes here

Take Me There

Location: Saint-Mars-De-Coutais, Nantes, Pays de la Loire, France

Other Popular Places to Check Out

Le Port Hamoneau

Chemin du lac entre Bouaye et Saint Aignan de Grand Lieu

Chaussée de Robert

Route du Marais Audubon

Bac de Couëron

Port Lavigne Boatyard and Fishing Huts

Wooden Bridge and River Path Between La Roche Ballue and Port de la Vigne

Château des Jamonières

View of Lake Grand-Lieu

Marais

Trail Through the Marshes

Lac de Grand-Lieu

Sign up or log in to keep exploring this route

By continuing, you agree to our Terms of Service and acknowledge receipt of our Privacy Policy.

Continue with Google

Continue with Apple

Continue with Facebook

Continue with email

Already have an account?

Download the app

Follow Us on Socials

Community guidelines

Vulnerability disclosure program

Imprint

Information for law enforcement

We value your privacy ⛰️

We use cookies that are essential for the app and website to function correctly or are used to produce aggregated statistics. With your consent, we and our third-party partners will also use tracking technologies to improve the in-app and navigation experience, and to provide you with personalized services and content. To give your consent, tap Accept all cookies. Alternatively, you can customize your privacy settings by tapping Customize Preferences, or by going to Cookie Preferences at any time. If you don’t want us to use non-technical tracking technologies, tap Refuse. For more information about how we process your personal data through cookies, take a look at our Privacy Policy.