Good info thank you.
I forgot, yes we plan to hit Hoover Dam on the way out of Vegas. No going down into the canyon, you are right probably on the rim looking down.
In Flagstaff I was thinking that Bearizona thing, maybe the Out of Africa Wildlife Park, that art village in Sedona, and maybe that lava tube in Walnut Canyon National Monument. I thought it might break up the Grand Canyon, Zion, Bryce, canyon view after canyon view to stay in Flagstaff for a couple days, eat out at nice places, etc.
Any input on Bryce/Zion and how to break it up? I have 4 nights in that area and would prefer to not move hotels but maybe a 2 hour drive up to Bryce from Zion means we should stay up by Bryce for 1 or 2 nights and then 2 or 3 nights in Springdale near Zion. Not sure about that part. Is Bryce a 1 day thing or more? I think Zion is good for several days of day hiking/exploring. Want to take it slow and let my son climb around, play in the water, etc.