Biologically, a child (plural: children) is a human being between the stages of birth and puberty. The legal definition of child generally refers to a minor, otherwise known as a person younger than the age of majority.
Four of the five Great Lakes border Canada: Lake Erie, Lake Huron, Lake Ontario and Lake Superior. Lake Michigan is the only one that does not border Canada; it is located completely within U.S. borders. Keep Learning.
There is no body of water that borders Canada to the south. The Arctic Ocean is on Canada's north, the Pacific Ocean on the west, and the Atlantic Ocean on the east. To the south you'd have to consider the St. Lawrence River and the Great Lakes (Superior, Huron, Erie, and Ontario) as bodies of water. They are the only physical border between Canada and the United States.