Janita and I visited the Weinachtsmarkt in both Düsseldorf and Köln last Sunday and wow they were crowded! Most of the time we moved at a slow shuffle along with the flow of the crowd. Some Gluhweihn helped and also some good food.
We even found the fried fish we like so much in Aachen, although there was only one stall selling it and that was in Köln. A few acquisitions, some time spent watching the craftsmen making their wares in Düsseldorf and eating under the light tent in Köln made for a really enjoyable day, despite the crowds.