Do you have mobility scooters ?

Yes they do.

They have covered mobility scooters available at the front left side when you enter. I believe there is a rental fee

They do have scooters at a cost.

Usually people with ambulatory issues have/use their own I Haven seen any clearly marked as Phoenix Zoo It's an easy phone call to make because you may have to reserve a time slot

I don't You would need a off road type to some hiking trail there