Grand Canyon too obvious?Heading to Sedona for the first time and staying in an uptown AirBnB. Any suggestions besides the trails and sitting in the hot tub enjoying the views in the evening while imbibing?
Seriously though, I've been to Northern Arizona a few times, and could provide a lot more ideas about the state than you're probably looking for.
As far as Sedona goes:
If coming from PHX, first stop at Montezuma Castle National Monument, about 30 min south of town, just barely off I-17. It's an ancient cliff dwellings site. Need about 45-60 min on-site.
Then stop at the Red Rock Visitor Center about 10 min from the I-17 Sedona exit, for the views from the parking lot. Great preview of what's to come. (Can skip the building itself except for bio breaks.)
Then the Chapel of the Holy Cross. Cute church but you go for the environs. Can see in 30 min or less if desired, or can hike around while there. It's on the south edge of town, just a few blocks off the main road into town.
Look into a Jeep or (preferably) Hummer tour thru the desert.
Also look into the Lowell Observatory in Flagstaff (about 50 min away). If they have evening events, then don't consider it, just go -- it's one of the few places in the developed world where you can get dark sky views. The drive on Rt 89A is pretty too (during daylight!).
I'll stop now, but if you need more ideas or have more questions, fire away.