If you’re planning a trip that could get a little chilly, you’ll need to pack the correct clothing to avoid harmful effects of cold exposure. Being cold and wet can cause things like hypothermia or frostbite, which can be very dangerous.
With frostbite, your extremities can feel numb and take on a cold, blueish colour. Signs of hypothermia are changes in skin colour, shivering, and confusion. For cold exposure, you’ll need to get into lots of layers of dry clothing, and have waterproof and breathable outer clothing. Protecting your extremities is also important, along with eating frequently to help maintain the correct body temperature.
As long as you’re well prepared, you’ll be able to avoid any surprises.