My family has 10 days in Morocco this March. We definitely want to go to Marrakech. Half of us want to then see the dunes near Zagora and half want to see Essaouira. If we are renting a car to get around, would it be crazy to try to do all of the above in 10 days? We don't really want to remember the trip as being rushed and carsick. I think the dunes will be great to visit during March, but I am not sure that making the trip to Essaouira in March is worth it. Looking for experienced feedback. Thanks.