Newfoundland ========== Nope! They all share a border with at least one other province. Labrador, which is part of the Province of Newfoundland and Labrador, shares a border with Québec. Prince Edward Island also shares a border with both New Brunswick and Nova Scotia. "On the South side of the Island, the mid-point of the Northumberland Strait is shared with N.S and N.B and each of the three Provinces has jurisdiction on their side of the mid-point." source: Island Information Service, PEI Provincial Government
British Columbia, Alberta, Saskatchewan, the Yukon, Nunavut and the Arctic Ocean. Technically a water border is also shared with Russia via the North Pole. See the map to understand how all these work together. There is a link to that map below.
Hispaniola, by Dominican Republic and Haiti, and New Guinea, by Papua New Guinea and Indonesia.
Some examples of islands shared by two separate countries include Hispaniola (shared by Haiti and the Dominican Republic), Borneo (shared by Brunei, Indonesia, and Malaysia), and Saint Martin (shared by France and the Netherlands).
Some of these major islands are the Malvinas or Falkland Islands claimed by Argentina and Britain and the Galapagos Island that is a part of Ecuador. Juan Fernandez Islands and Easter Island are territories of Chile. All these countries are in South America.
Lake Superior is shared between Canada and the USA, it borders parts of ONT. Man, Michigan and Minnisota.
The Gobi Desert is in north-northwest China and southern Mongolia. The shared border of Mongolia and China runs through the Gobi desert.Asia
countries and islands that has shared historical experience
Madagascar
The term "Caribbean islands" is used to refer to the group of islands located in the Caribbean Sea, which is a region in the western part of the Atlantic Ocean. The islands in this region have a shared cultural and historical background, leading to their collective identification as the Caribbean islands.
Did you hear about Haiti? Yes! Haiti is an island in the Caribbean shared by the Dominican Republic.
There are about 31 countries with a presence on Antarctica. Six of these support summer-only facilities. Under the terms of the Antarctic Treaty, all research conducted is shared with all countries that either signed or ratified the treaty, which means that all research is shared among nation-states representing 80% of the population of planet Earth.