Canada is the country with the world’s longest coastline.
Canada’s coastline measures about 202,080 kilometres, including shores on the Atlantic, Pacific, and Arctic oceans. Its extraordinary length is largely explained by the country’s Arctic Archipelago, which contains thousands of islands and creates an exceptionally intricate shoreline.
Canada also has the world’s longest coastline when island shores are included, which is the standard basis for the commonly cited record. Measurements can vary slightly depending on map scale and surveying methods, because highly irregular coastlines produce different results.
Russia is sometimes mistaken for the coastline leader because it is the world’s largest country by total area and borders several seas. Canada, however, has the longer coastline. Much of Canada’s northern coast is remote and experiences sea ice for part of the year.