Mr Stephen J Harper mostly stayed in Ottawa, in his office actually, doing work.  Justin's been all around the world already, now he's got time for a visit (quickly, not too many celebrities or elites up there) to the North before he heads off to hobnob again with his people, the global elite.  I remember seeing him say that one of the reasons the leadership job appealed to him was the opportunity for he and his family to travel (I guess he meant on our dime).  It's a good strategy, the ladies love a man who's always in motion, who's always got important places to go, and they're the foundation of his popularity.