For bouldering, I like Boulderz, and a lot of people like Joe Rockheads http://www.boulderzclimbing.com/ http://www.joerockheads.com/joerockheadsflash.html Also, Toronto Climbing Academy has just opened a new Gym in the north east end of the city with a 16 foot high top-out boulder, but i haven't been there yet... www.climbingacademy.com -D
Addendum: Went to the new Toronto Climbing Academy location today with the freestanding top-out boulder. Not completely finished yet, can't use the top-out yet, and not too many problems yet... but it's coming along.
the best climbing gym in toronto