In reply to Os_878:
> I don’t know ive always wanted to go, since i was a kid wanted to go there, this even pre-climbing & found it an intriguing country.
> Im planning/ hoping to do both sides of the country as im not using any work leave this year & luckily carrying over to next year so i can get just about get 1.5 months. Then when im there flying / driving/ coaching between closer destinations.
Ok, wanting to go to Canada for the sake of visiting Canada -- that makes sense to me. But visiting Canada as a climbing destination, rather than, say, looking at western North America, was a bit odd.
As others have said, there is some great climbing in western Canada -- Squamish, Bow Valley, etc.
For eastern Canada, there really is nowhere that I would call "destination" climbing. In Ontario and Quebec there are lots of places to climb that would/could be fun if you're in the area visiting, but not as destinations for climbing. For the maritime (east-coast) provinces: I don't think New Brunswick has much climbing, or at least, not much well-documented climbing, Prince Edward Island has none (maybe some bouldering), Nova Scotia has some good bouldering and some climbing, and Newfoundland has lots of rock -- but not many people.
Assuming you're looking for rock climbing (not ice climbing), you also have to consider season. For eastern Canada, generally the best season is mid-August through mid-October. Mid-June through mid-August tends to be hot and humid. Mid-April through mid-June tends to be biting-insect season. Before mid-April it tends to be chilly to cold, which means only nice-day climbing. After mid-October has similar issues, too much chance of being too cold to want to climb.
I'm not sure of the seasons for western Canada, it isn't my area. I would expect Squamish to have a longer season due to climate in that region, whereas possibly/probably shorter for the more interior B.C. and Alberta climbing areas.
You will almost definitely need a car.
I can give more detailed suggestions/recommendations for places to climb in Ontario and Quebec if I know which bits you want to visit, as I've got a pretty good handle on the climbing around here. If you happen to be heading for Ottawa (my home town, and capital of Canada), I'd be happy to spend a day or two showing you around some of the local crags. (Well, assuming I wasn't out of town for business or something.)