Morocco is an Arabic speaking country. Most Moroccan's speak at least a little French except in some of the more remote locations. In some areas of Morocco, Berber is the native language. Now I'm not suggesting you need to learn Arabic, French and Berber.
Fes (also spelled Fez) is Morocco's ancient capital, filled with beautiful alleys, amazing shops and wonderful people. Check out this bucket list for your visit to Fes! Fes, Morocco: 10 Things You Absolutely Have To Do