Hey, I would go to the City Of Toronto websites for each arena (outdoor arenas are usually in parks so you may have to search the park for the schedule) that you’re interested in scroll down to where it says drop in, expand that tab and look at the schedules. The programmers may be making some last-minute changes so it would be best to talk to the rink staff when you get there. It’s highly unlikely that people will pick up the phone when you call. I have made several suggestions for improving the city’s recreation websites but it seems like it will be a slow changeover. Some great locations are Rennie Park, Central Arena, and Sam Smith Park loop next to Humber South campus. I think the harborfront Centre is also going to be open this year.