Where is the longest coastline in the world?

The longest coastline in the world belongs to Canada, stretching over 202,080 kilometres (125,187 miles). Canada’s coastline borders three oceans—the Atlantic, Pacific, and Arctic—giving it a wide variety of coastal ecosystems, from temperate rainforests to frozen Arctic tundra. This vast coastline is home to diverse wildlife, including marine mammals, birds, and fish. The country’s numerous islands and remote regions also contribute to the length of its coastline.