Jean - The 19th is a Sat. and we only practice on Mon. Did you mean the 21st? I suspect any form of spearfishing it is illegal.
UWH is practiced on Tues. and Thurs. nights in Brampton (just north of TO). It is from 8:30-9:30 at the Balmoral Community Centre pool (on Balmoral off Dixie). You would be more than welcome to come to those practices to. I'm usually there on Thurs.
jaap - I will add to your site when I get a chance. Have you seen this page:
http://www.freedivecanada.com/rec/sites/rec_sites.html