I'm a big fan of the bus touristique concept, and the narration is good. Marrakech is just not laid out well for this tour. The inner city is too compact - you see more on foot. The format of this bus - with two lines and infrequent schedules - chews up a lot of time. If you want to see everything on the tour, it might be worth it. If you're only interested in a few things - take a cab. They're not bad at all.
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