I will add my two cents from my experiences in climbing:<br><br>-if there is a chance before you go to sleep fill up your water bottle with hot liquid and put it around your feet in your sleeping bag, it will keep you very warm for the next 5-6 hours plus you will have a ready canteen for the next day without nasty purification tablets.<br>-if you need to dry your wet clothes put them on the mattress under you or bundle them up bewteen your legs. They may not get totally dry but they will be fine in two days or so. Wet socks go under your back pack straps<br>-try shielding your eyes to avoid snow blindness<br>-never ever in high altitude when tired and cold sit down and promise yourself a 2 min nap unless you have somebody watching. While climbing Kilimanjaro I found a person who slept for 7 hours after promising themselves 5 min nap. He lost 6 fingers and part of his ear and nose.<br>- "step by step and slow" is my motto when walking in the snow. <br>- no alcohol, cold and liquer will put you fast to sleep and you may freeze to death (example Russia in the winter)<br>- shelter build out of the snow will be much better that trying to find sticks or tarps<br>- as mentioned: drink water just like in the boot camp at least four canteens a day<br>- sun protection: no matter how cold it is you will get sunburned even after short exposure<br>- double check your knots and double check after others. Cold can make you delirious and you may skip some simple steps such as acctually not attaching the safety line.<br>- if no gloves are available wear extra pair of socks on your hands. I did it, was uncomfortable as hell but I finished the trek.<br>- take care of your feet, it's all you got that will get you out<br>- watch out for bear tracks<br>- watch out for the ice surface and cracks, I never heard yet of succesfull rescue of a person who fell into pit or water around arctic area<br><br>I probably missed a lot and people will add to my list. But I was so amazed how all of the above is true and how quickly weather can change and your situation as well. When I was climbing Mt. Kenya first day I got hit with tropical storm, second day was a snow storm and third day wind was throwing me around (160 lbs plus 60 lbs pack). When I moved out on the fourth day around 2 am to summit around 6-7 to see the sun rise I had a clear sky. For the next 4 hours weather went from extreme windy to snowing to clear sky again yet when I was comming back I had 4 days of perfect weather.