As the worldâs second largest country, Canadaâs geography changes significantly depending on which part you are in. And with the differences in each region, there is a very different accompanying landscape and climate. In almost every part of Canada there are lakes and rivers. Canada has over 2 million lakes covering 7% of the land mass. The largest lake is the Northwest Territoriesâ Great Bear Lake. It is estimated that Canada is home to one-seventh of the worldâs fresh water. Canada has a land mass of 9,970,610 square kilometers and occupies the northern half of North America. From east to west, Canada encompasses six time zones.