(Gee, that makes it sound like I'm talking about something other than a vacation...)
The drive to get there and back was long. Overall, we put in more than 4500 km of driving, which is a bit much.
The weather was mixed, with a few wet days. The temperature ranged from the cool end of comfortable to pretty cold: there were still snowbanks here and there up in the highlands. Where the wind was off the water, the temperature was distinctly chillier. In retrospect, bringing several pairs of shorts was perhaps unduly optimistic.
Cape Breton had lots of variety of land- and seascapes, with mountains, cliffs, meadows, bogs, beaches, taiga, streams, and lakes all vying for attention. We did a fair bit of walking and driving around, as is our usual habit on vacation. Aside from that, we went on a boat trip to look at seals, puffins, and other seabirds, and also visited Fort Louisbourg. We ate lots of good food, especially seafood: lobster, fish, scallops, shrimp, and some utterly amazing snow crab. Our favorite B&B of the four we stayed in was The Yellow Sidecar on the west coast; highly recommended.