loads of snow, blue skies, sunshine and the temperature never above -5
It doesn’t matter, it’s dark for over 70% of it.
Anyway, if you need last minute tips you’re probably stuffed. Everything above apart from singlespeeding is true.
If it’s warm and wet pack as many brake pads as you can eat.
Pack every item of cycling clothing you and all your friends your size own.
Change if you stop for more than a minute. The wet clothes clinging to your body robbing heat is what has done for me in the past.
Precook some food (I used pasta and some sauce with bacon in it) that you can heat on stove. Warm food will be your saviour.
Do whatever you can to get a pit bitch. It will make everything so, so much better for you. Get them to cook your food, sort out changes of clothes and fix your bike.
Enjoy it, it’s amazing.