low temperature can also be a problem. if your idea of adventure is sailing,rafting, or climbing mountains, you might find yourself in cold conditions. the main danger is hypothermia, which occurs when your body loses heat faster than it produces it. a long mountain walk on a cold, windy day, plus wet clothing, tiredness, and hunger could also give you hypothermia. you need to be prepared by wearing severing layers of clothing (not just one big, thick sweatshirt). you must were a hat, as a lot off body heat is lost through the head, and a good waterproof jacket. you don't need to have huge amounts of food with you, but some sugary foods (like chocolate !) for quick energy and plenty of fluids are important if you want to stay safe in the cold.