Tips
Conservatoire d'espaces naturels HdF
May 12, 2026
Cycling
Le Marais du Château is located in the middle valley of the Somme, in the commune of Bourdon. It consists of a large shallow body of water, accompanied to the east by small bodies of water and inlets sheltering numerous springs. The total area of water surfaces represents about 2/3 of the site's surface. These expanses of water are bordered by floating peat bogs, colonized by reed beds and alkaline fen vegetation, which restoration operations have helped to maintain and expand.
cen-hautsdefrance.org/site/le-marais-du-chateau
cen-hautsdefrance.org/site/le-marais-du-chateau
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Nearby routes
Best routes near The Castle Marsh
4.2
(5)
22
riders
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
Easy
4.0
(2)
5
riders
27.0km
02:00
150m
150m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
Easy
3
riders
17.3km
01:03
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
Easy
Details
Informations
Elevation 50 m
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Thursday 23 July
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Max wind speed: 9.0 km/h