First and before I forgot, don't forget your fishing licence. Near Niagara, once in Quebec, if you cross a Canadian Tire (kind of Loews we have up here) stop by and take the licence.
Now sure, there is SOOOOO many great place here.
Guess you are talking about the electrical dam (la manic). Never went there but heard great stories.
Unfortunatly, i did not found any web site in english that would be helpful to you unless you use a web translator. Even the natural ministry web site is only half translated. Buncn of idiots
http://mffp.gouv.qc.ca/
Once you left the Montreal area, most people will have some problem to speak in english but will try and help you as could as they can. Guess it's time to review your french courses from high school
If you visit the sepaq web site, you will be able to make great plans and some reservations. As a first trip here, i beleive it's your best option.