This trip is truly special!  Floating through scenic canyons rich in history and wildlife.  Seeing brown trout rise slowly and slurrrrp a well placed terrestrial.  Watching rainbow trout pounce on caddis flies as they tumble through riffles.  Definitely a memorable fly fishing experience.
Get on the water early to take advantage of that morning hatch and be there as the hatch progresses from nymphs to emergers to dries!
Cast terrestrials through the afternoon, and tempt that big brown trout to come out of his hiding place.  Enjoy a little more solitude while you target trout that are becoming more active as the afternoon begins to cool.