In reply to Blue Straggler:
Belgium has quite a bit, not world class but plenty of routes; look at freyr, in the uk it would be one of the better sports crags, on bolted natural limestone.....
As for Luxembourg, if you're in the area try out Berdorf, I can't think of a sports crag in the UK I would chose over it, it's definatly world class. If the weather wasn't as unpredictable as the uk, I'd say it would be a great detination for a trip.
Post edited at 13:49