Coastline does not have a well-defined shape so finding its correct length is impossible however estimated figure can be find using fractal geometry. Country, having longest boundaries with sea, can enjoy more trade activities with whole world as compared to landlocked states. Many countries have vast urban area touching sea which enable whole economy to grow and become more powerful . The map of Top Ten Countries with longest coastline is shown below.
Canada has world’s longest coastline of 202,080 Km which is four times longer than Indonesia. Its boundaries touches three oceans the Atlantic, Arctic and Pacific Oceans. It is second largest country of world in term of area with 52455 islands.
Source:The World Factbook
