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The Blue Hole – The Port House loop from Saint-Nazaire

The Blue Hole – The Port House loop from Saint-Nazaire

Moderate

riders

The Blue Hole – The Port House loop from Saint-Nazaire

03:17

77.5km

250m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 15, 2026

Tips

Cycling is not permitted along parts of this route

After 0 m for 339 m

After 77.2 km for 339 m

Waypoints

Start point

Train Station

Get Directions

1.95 km

Saint-Nazaire Submarine Base

Highlight • Historical Site

La base pour sous-marins de Saint-Nazaire est l'une des cinq bases construites sur la façade Atlantique au cours de la Seconde Guerre mondiale à Saint-Nazaire par l'Allemagne nazie qui occupait …

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4.70 km

Chantiers de l'Atlantique crane

Highlight • Monument

12.3 km

Outing from Montoir to Ile de Fedrun In La Brière

Highlight • Cycleway

Small walk with a lot of road but very quiet for all levels

Translated by Google •

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21.9 km

Total Donges refinery

Highlight • Other

It's probably an oil refinery, but it reminded me of Mordor! It's eerily beautiful how the fire shoots noisily out of the chimneys.

Translated by Google •

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28.9 km

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 •

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30.5 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 •

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77.5 km

End point

Train Station

Way Types & Surfaces

Way Types

52.9 km

16.2 km

5.02 km

2.16 km

959 m

185 m

Surfaces

61.9 km

14.9 km

467 m

150 m

Elevation

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

Weather

Wednesday 2 September

24°C

17°C

-- %

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The Blue Hole – The Port House loop from Saint-Nazaire

Saint-Nazaire Submarine Base

Chantiers de l'Atlantique crane

Outing from Montoir to Ile de Fedrun In La Brière

Total Donges refinery

The Blue Hole

The Port House

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