"Not your typical survival advice but an important falsehood: You have to wait 24 hours to report someone missing. Absolutely untrue, and the longer the wait the worse the outcome for the person missing. If you believe someone is missing report it immediately with all information you have. Eat snow for water. Waste of energy. There isn't a lot of water in snow by volume (unless packed) but moreover your body will expend energy in the form of heat to melt the snow. Build a fire, find something you can use as a basin, melt the snow then drink."