Ideas for day trips within 2-3 hours of Marrakech?

Hi there, I live in Casablanca and my parents, who are 80, will be joining me in Marrakech at the beginning of May for a few days. We’ll be renting a car to get around. Do you have any suggestions for things to see or visit within a 2-3 hour drive max from Marrakech that aren’t too touristy? My parents can walk a bit, but at 80, no climbing Mount Toubkal! Thanks so much in advance for your ideas!

A walk around Marrakech that's not too touristy???? I've searched everywhere—mission impossible.