Petersbrook Bridge is over the Baddeck River, which is normally quite benign. However, at this particular spot it often floods when there's a serious rainstorm. In fact, it once swelled its banks and moved the small cottage here many feet and even flipped it around. If you're geocaching on a heavy rain day, we would suggest skipping this cache and coming back another day.
Ifyou have read this blurb, then I have given you some very good clues where to look.
The best parking is on the other side of the bridge.