Any advice?
What type of advice are you looking for?
Pack long underwear and waterproof shoes. The responses to your earlier question covered the clothing suggestions very well. What else are you asking about?
Don’t mix gluhwein and punsch.
Your earlier thread regarding clothing at that time of year should have answered that question. Pack as they suggested, dress in layers and enjoy yourself.
Don’t mix gluhwein and punsch.
...unless it's Kinderpunsch.