Sorry for not responding Patrick. I've been traveling a bit lately.
I have not done Rossport or the Slate Islands although it is on my list. I have done Tadoussac (northeast of Quebec) kayaking with the whales, which is a three beer story for sure. I have not done Thunder Bay or the Lake Superior Provincial Park, although it was on our short list last year. Maybe this year.....
I used a small Kodak "point & shoot" camera. I just bought a Panasonic Lumix waterproof camera (tired of putting the other one in and out of the drybag). We'll see how the quality compares.
I live between Detroit & Lansing, and it takes about 11 hours to get to Killarney from there. It's an all day trip.
Let me know if you have any other questions.