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Routes
Road cycling routes
France
Pays de la Loire
Saint-Nazaire
Prinquiau

The Blue Hole – The Port House loop from Prinquiau

Routes
Road cycling routes
France
Pays de la Loire
Saint-Nazaire
Prinquiau

The Blue Hole – The Port House loop from Prinquiau

Easy

25

riders

The Blue Hole – The Port House loop from Prinquiau

01:55

43.0km

180m

Road cycling

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 15, 2026

Tips

Includes a segment in which cycling is not permitted

After 34.7 km for 236 m

Waypoints

A

Start point

Bus stop

Get Directions

1

19.6 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

2

21.2 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 …

Translated by Google •

Tip by

3

26.8 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

33.7 km

Savenay

Highlight • Settlement

On the edge of the Loire estuary, the small town of Savenay makes an excellent base camp for exploring the Brière regional natural park (PNR) which it borders. In its …

Translated by Google •

Tip by

B

43.0 km

End point

Bus stop

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Way Types & Surfaces

Way Types

35.5 km

3.85 km

3.24 km

397 m

< 100 m

Surfaces

29.1 km

13.6 km

186 m

150 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Friday 29 May

28°C

16°C

0 %

Additional weather tips

Max wind speed: 10.0 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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