The City of Dundas is hosting its community festival, Celebrate Dundas, (PDF poster) this weekend. See this Northfield.org blog post by Leah Rich for more details.
I caught part of it last year. See my album of 18 photos of some of the downtown activities on Saturday, the large slideshow, or this small slideshow:
The Dundas Dukes play tonight at 7 pm. See this album of 17 photos from a May 29, 2009 game, the large slideshow, or this small slideshow: