With so much to explore, Ontario is as difficult to cover in one vacation as it is to describe in one sentence. It manages to include both Canada's most populous city (Toronto) and areas so remote that polar bears outnumber humans. It has tranquil farm country in the south, but in the midst of that rural landscape are Stratford and Niagara-on-the-Lake, two small towns that stage some of the finest theater in North America. There's an incredible wealth of water—four of the five Great Lakes, the St. Lawrence and Ottawa Rivers and 250,000 inland lakes. And there's Niagara Falls, the most famous water spectacle of them all.