I forwarded your comments to my daughter along with some info about the train. I received an email from her this morning:

"Thank you thank you for all the help!
We are currently sitting in town having a lovely breakfast, about to take the train back to the airport. We visited the BIG mosque (Hassan II), and it was absolutely stunning. We also saw Rick's Cafe from the movie. We are not missing Mali one little bit right now. (Ahh, my coffee is fantastic!)"