lets do a steam whistle tour! basically you sample beer and tour around the roundhouse. I havent done this myself but have seen this everytime ive gone to a jays game. dunno bout pricing though. or theres just the walk down the city. we could visit some neat buildings, the cn tower, aircanada centre, cbc building etc.
I do agree though that the best picnic place would be toronto island. rom is nice but the ontario science centre is better imo.
Oooh a good place is Casa Loma. its a castle, in toronto. seriously.
http://www.casaloma.org/Visitor/the only problem is tickets will come to about 20$ per person