The most accessible desert from Marrakech is a bit touristy, but a detour to Agafay, also known as the Marrakchi desert, is still much appreciated. One night at the Terre des Etoiles and a meal at the famous La Pause, and that should be enough to enjoy the Agafay sand dunes. A more authentic desert requires going to the Algerian border, either in the Figuig region or to the Erg Chebbi dunes.