Contact both the Local AND Out-of-Town Bus Tour Companies -
they are always looking for "events" to generate interest in their tours.

Alert the local Chamber of Commerce and/or Tourisim Bureau...
the folks who work on bringing Tourists into the area.

And there's probably a Governmental web site that promotes
Canadian Tourism...

Do some http://www.google.com searches with "tourist" and
regional Place Names...
then go to the hit sites and see if they might be interested
in promoting your events.

/s/ Phred