Geography of Canada Canada's territory as sparsely populated wilderness; Canada's population density is 3.5 people/km (9.1/mi), among the lowest in the world. Despite this, 79.7 percent of Canada's population resides in urban areas, where population densities are increasing. Canada shares with the U.S. the world's longest undefended border at ; are with Alaska. The Danish island dependency of Greenland lies to Canada's northeast, separated from the Canadian Arctic islands by Baffin Bay and Davis Strait. The French islands of Saint-Pierre and Miquelon lie off the southern coast of Newfoundland in the Gulf of St. Lawrence and have a maritime territorial enclave within Canada's
Miyako Strait Miyako Strait The , also known as the Kerama Gap, is a waterway which lies between Miyako Island and Okinawa Island consisting of an approx. 250km wide passageway with international waters and airspace. It is the widest strait in the Ryukyu Islands. The Miyako Strait is of global geopolitical significance, as it is one of the few international waterways for China's People's Liberation Army Navy to access the Pacific Ocean from the East China Sea. Japan insists that China has committed to informing them in advance if their Navy sails through the strait, a claim that the Chinese deny has