Paudais lock – Château de la Groulais loop from Savenay
Paudais lock – Château de la Groulais loop from Savenay
4.3
(3)
10
riders
Paudais lock – Château de la Groulais loop from Savenay
08:58
140km
680m
Cycling
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.
Last updated: March 30, 2026
Tips
Includes a segment in which cycling is not permitted
After 78.2 km for 61 m
Waypoints
Start point
Train Station
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26.7 km
L'Isac - super wide and aquatic plants
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Aquatic plants grow like carpets on both sides.
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32.0 km
Parc de Carheil
Forest
36.3 km
Beautiful scenery along the Nantes-Brest canal
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49.8 km
Paudais lock
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52.4 km
Port of Blain
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53.2 km
Château de la Groulais
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55.6 km
Lock 11 — La Prée
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62.1 km
Canal de Nantes à Brest
Lake
84.7 km
Old Railway Line from Treillières to La Chapelle-sur-Erdre
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96.2 km
Le Cens - Petit Port cycle path
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140 km
End point
Train Station
Way Types & Surfaces
Way Types
49.4 km
42.3 km
36.6 km
8.40 km
2.75 km
756 m
< 100 m
Surfaces
69.1 km
34.4 km
20.9 km
15.7 km
186 m
< 100 m
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Elevation
Highest point (90 m)
Lowest point (0 m)
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Weather
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Sunday 31 May
23°C
12°C
0 %
Additional weather tips
Max wind speed: 18.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.