'''Lake Ontario''' is one of the Great Lakes on the border between the United States of America and Canada. Sequentially the last of the lakes, Ontario is the smallest by surface area and second-smallest in size. Water comes in from Lake Erie via the Niagara River (and Niagara Falls) and leaves via the Saint Lawrence River, headed for the Atlantic Ocean.
Nearby destinations
Lake Ontario is shared by the Canadian province of Ontario and the U.S. state of New York. The largest city on the American side is Rochester; the largest on the Canadian side is Toronto. Both countries' cities of Niagara Falls are nearby. The Thousand Islands region lies at the lake's outlet.