Ottawa, the nation's capital, is also in Ontario.
Other cities include London?, Waterloo?, [Thunder Bay]?, Sudbury?, and Windsor.
Ontaria province has shores on Lake Superior, [Lake Huron]? (including [Georgian bay]?), also Lake Ontario and Lake Erie.
[Niagara Falls]? is on the border between Ontario and New York, near Buffalo.
See also: Canada, Canadian provinces and territories, Canadian cities