From Casablanca :
Fez Guided Tour.

A full-day guided trip from Casablanca to Fez, covering the 300 km route by private vehicle with a guide who accompanies you for the Fez city segment. Most versions of this tour depart Casablanca early - around 7 to 7.30am - to allow 4 to 5 hours in Fez before the return drive. The Fez medina, a UNESCO World Heritage site, is the main focus: the tanneries at Chouara, the Al-Qarawiyyin mosque and university (exterior), the Andalusian quarter, the dyers' souk, and the main thoroughfare of Talaa Kebira. A medina guide is essential here - the old city has no street grid logic and getting thoroughly lost is easy even with a map. Lunch is typically at a rooftop restaurant above the tanneries where the leather dyeing vats are visible below. Return to Casablanca arrives by 9 to 10pm. This is a genuinely long day - 6 hours of driving plus 4 hours of walking and standing in the medina - and it suits travellers who have limited time but specifically want to see Fez without adding a night to their itinerary. Those who find the day trip too rushed commonly wish they had booked a 2-night stay in Fez instead; this is worth considering before booking.