Do not live in that part of France, but I've ridden in the area.. Lille.. And I know the Ardennes... Awesome riding... Should you be hanging out in any given city, seek out the local bike club. They are everywhere.. I assume you know some French.. They will welcome you... Bike clubs are affiliated with this organization... This site makes them easy to locate... Just choose your city...
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http://www.ffc.fr/
Should you get down to Roussillon give us a shout..