Hi,
I would heartly recommend the canyon trip, I used Papillon awhile back and enjoyed every aspect of the flight and ground tour. I would agree with the previous poster concerning the planes with overhead wings, they afford a much better view and, you will have a lot to view .

One thing to keep in mind is that this is an all day trip(8 hours I believe)and you will miss the large part of a convention day.

Have Fun---------Tommy