This will be our family's first (and most likely only) big vacation so yes, it will be a Griswold tour! Family of 4, 2A + 2 Teens (who have never even flown before, so yes, a trip of a lifetime for them!) We get into Flagstaff at midnight (yes I know, frequent flier miles) pick up rental car the next day. I managed to get 2 nights on the North Rim in a Western Cabin. Question is, driving from Flagstaff to N. Rim that first day, is it possible to stop by the S. Rim for a "look see" and still make it to the N. Rim by sunset or is this impossible? We can cancel one night at the N. Rim and stay near S. Rim but I hate to do that. I've been to both rims and love the North but this is my children's first trip so I want them to at least have a quick look at the South Rim if possible. I'd like to think we will be on the road by 9am but realistically it will be 10:00 or even 11:00, but if I can manage to pick up the car and load up the kids by 9:00 that is my goal! We will be heading to Aspen from N. Rim, so will not be wanting to back track to S Rim. Thanks in advance. I appreciate all the useful information on this website and will be using it extensively to plan our route from N. Rim to Aspen (5 days).