Les Puits Tournants – Naours Underground City loop from Allonville
Les Puits Tournants – Naours Underground City loop from Allonville
4.0
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riders
Les Puits Tournants – Naours Underground City loop from Allonville
02:20
52.2km
380m
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: June 19, 2026
Tips
The surface for a segment of your route may not be suitable
Some segments of your route comprise a surface that may not be suitable for your chosen sport.
After 8.17 km for 140 m
Waypoints
Start point
Bus stop
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8.24 km
Les Puits Tournants
Highlight • Natural Monument
Translated by Google •
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34.6 km
Naours Underground City
Highlight • Other
Fallen into oblivion in the 19th century, the underground city will be rediscovered in 1887, studied from an archaeological point of view and then opened to visitors.
An important occupation during the Thirty Years' War has been attested by archeology1.
This underground city could shelter nearly 2,000 people. Throughout the galleries are the rooms of the different families. Also noticeable are the stables with the troughs, the ventilation chimneys and the smoke chimneys which stood out in those of the houses.
Almost everywhere on the walls there are inscriptions, religious symbols, etc. with dates ranging from the year 1340 to 1792.
It was finally used by British soldiers during the Second World War.
The visit is worth the detour!
Sources:
citesouterrainedenaours.fr
fr.wikipedia.org/wiki/Cit%C3%A9_souterraine_de_Naours
Translated by Google •
Tip by
35.4 km
Murals of the Church and School in Naours
Highlight • Monument
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35.7 km
Naours Hill towards Flesselles
Highlight (Segment) • Climb
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52.2 km
End point
Bus stop
Way Types & Surfaces
Way Types
44.1 km
4.36 km
3.62 km
105 m
Surfaces
41.8 km
9.98 km
302 m
105 m
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Elevation
Highest point (140 m)
Lowest point (40 m)
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Weather
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Saturday 11 July
34°C
18°C
0 %
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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