Im from Quebec (the province), and Ive heard of smokeshops, but never been to one, and my brother once had to spend a day in jail for possession (under a gram). He then had to do a little amount of anti-drug counseling which is pretty ridiculous since he was 15 at the time.

Other wise tho its pretty relaxed. On 420 over 2,000 people smoke up next to/in front of the parliament building in Ottawa with police officers simply enjoying the show.