SOUTH POLE, ANTARCTICA: Sara is another new recruit with me and we didn't have our bunker gear yet so we wore our issued ECW (Extreme Cold Weather) gear. The temperature in the tunnel is between -55F where we started and drops down to about -65F at the deepest point. There's no wind chill, so that's nice. The frost on Sara's eyelashes, face cover and hat is the condensation of her own breath freezing when it hits her.
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