It looks like we will be staying in Scottsdale next spring for a week. We have never seen the Grand Canyon and feel like we should try to get there since who knows when we will be in AZ again. Is it even doable? How far a drive is it? How many days would we need at a minimum. We will have dc, ages 9, 7, 3 and 2. I could possibly leave the littlest ones back in Scottsdale with my parents. How best to see/experience with the older kids? Are there hikes or excursions geared to families? Thanks in advance for any info.