La France: Beer Advice!

Later this year, Mr Ticker and myself are going to France with some family to stay in a cottage. We are going to be based in Pas de Calais, in the north of France fairly near Amiens. We've already planned a jaunt to Bruges, but would like some advice about anywhere particularly beery worth visiting nearby, or any good beers that are readily available in France. Previous holidays have been all about the wine... for obvious reasons... but this year, of course, beer is going to preside.

Any ideas would be very much appreciated- merci beaucoup!