In Britain it was traditional for some to burn the Christmas letters on the fire so that they would be magically transported by the wind to the North Pole. However this has been found to be less efficient than the use of the normal postal service, and this tradition is dying out in modern times, especially with few homes having open fires. According to the Royal Mail website, Santa's address for letters from British children is: Santa/Father Christmas, Santa's Grotto, Reindeerland, XM4 5HQ