I went to a small town called Kall about 15 years with a german mate (he was living in the Netherlands) and can't remember why we went there specifically...but the xmas market there was great, and we got drunk on gluhwein… there was even a Scottish guy playing the bagpipes
I'm hoping to break up on the 13th December (until jan 2nd) and will be doing some kind of road trip in the Netherlands / germany with a couple of mates (assuming they can get the time off work..), but it's not confirmed I will be able to have the time off as I think a load of my colleagues want the time off too..