We've been talking about a train trip for a long time, and originally was planning to Istanbul but we have had a change of heart and decided to end up in Marrakech, so will need the ferry too. We have 3 DCs (17, 15 and 12). They enjoy a city break, the sea and are all to a higher or lesser degree interested in history and DC1 and 2 are both studying Spanish. I love France and French and DH will be interested in Islamic history or slightly off beat things. If our dates coincide, I would probably book some football matches or at least Stadium tours too.
This is my provisional plan, what do you think and what are must sees along the way and how to split the days. We will have c. 15 days over the Easter holidays.
Paris - 1 night (possibly straight to Marseilles) with lunch at Le Restaurant Bleu
Marseilles - 2/3 nights Chateau d'If a must
Madrid - 2/3 nights (we could stop at Barcelona, but have been before)
Cordoba - 2/4 nights pretty non-negotiable as everyone will be into the Moorish heritage
Ferry to Tangiers from Algericas (unless there is a better way)
Marrakech - 4 nights at the end