Now if you are already tired of the usual Christmas market, try this Dutch market in Valkenburg near Maastricht for a change. It is an underground Christmas market in a cave system that the Romans mined out. The caves are beautifully lit, this year’s theme is Dicken’s A Christmas Carol. Arrive early this market obviously gets busy. Two section of the quarries now have a market, the Gemeentegrot and the Fluweelengrot.