how do internships in canada work?

I'm an advertising design student from Belgium and in june next year we have to take on an intership.
I'm really interested in doing my intership in Canada but there are a few questions I have.

Do you have to look for your own place to stay or do they have a similar system as America where they provide something?
What agency's are worthwile to go that distance for?
Will they give you some level of responsabilaty or do they just expect you to make coffee?

Thanks for reading, hope you reply