RÃ¥bjerg Mile is a migratory sand dunes between Skagen and Fredrikshavn in North Jutland in Denmark. The sand dunes walk about 15 to 20 meters a year and is the largest of its kind in Scandinavia. It covers an area of about 1 square kilometer. Since 1900 it has moved to 1500 meters, which means that the of 100 to 200 years will cover main route to Skagen.