I don't know of a CL down that way, but can thoroughly recommend Rookesbury Park CC site down there. Members only - we stayed for a week good facilities, and a specific area just for overnighters.
------------- Glyn W.
What if the Hokey Cokey really is what it's all about....?
we stayed here before an 8am crossing to France. No facilities (loos, showers etc) but ehu, water point and a very good pub 2 mins walk down the road. Would use the site again for an overnighter.