Here's the pictures I mentioned earlier. I happened to catch a CB&CNS local in Sydney by pure chance, we were heading out to Glace Bay at the time. I also saw a single loco on the Sydney Coal Railway, with about 4 coal cars in tow, but wasn't in a position to take a picture.
Tank cars stored at Havre Boucher yard - there were loads of them.
Two shots of the line somewhere near Antigonish. The track in this location didn't look too bad, but I think the section between Truro and Port Hawkesbury sees a lot more traffic than the section from Canso to Sydney and is better maintained.
The former Antigonish station, now the town museum.
Not Cape Breton, but we were on the way there from Quebec City at this point, so I'll include it anyway The Ocean at Halifax.