Saint-Thomas-Becket Chapel – Old Port loop from Sainte-Opportune-la-Mare
Saint-Thomas-Becket Chapel – Old Port loop from Sainte-Opportune-la-Mare
12
runners
Saint-Thomas-Becket Chapel – Old Port loop from Sainte-Opportune-la-Mare
05:22
44.3km
790m
Running
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.
Last updated: August 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
11 m
Observatoire de la GRAND-Mare du Marais Vernier
Highlight • Other
ancient meander of the Seine. the Marais Vernier constitutes a vast wetland of 4,500 ha located on an important bird migration corridor. A true natural amphitheater, this exceptional micro region is recognized at European level for the richness of its fauna and flora. Near the large pond is an observatory accessible to the public to admire the fauna.
Translated by Google •
Tip by
13.4 km
Saint-Thomas-Becket Chapel
Highlight • Religious Site
Translated by Google •
Tip by
29.4 km
Aizier
Highlight • Other
Translated by Google •
Tip by
30.8 km
Old Port
Highlight • Other
Translated by Google •
Tip by
44.3 km
La Grand-Mare Observation Tower
Highlight • Viewpoint
Translated by Google •
Tip by
44.3 km
End point
Parking
Way Types & Surfaces
Way Types
21.7 km
10.0 km
8.49 km
2.96 km
1.11 km
Surfaces
30.5 km
8.34 km
4.37 km
762 m
348 m
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Highest point (130 m)
Lowest point (0 m)
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Wednesday 21 October
14°C
8°C
73 %
Additional weather tips
Max wind speed: 26.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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