Pity you can't drive, there are some beautiful places to stop off along the way.
You can fly, but France has a terrific train system, plus trains stop in the centre of town rather than an airport on the outskirts. You'll get a great view of the Med' as you travel along the Riviera coast. Marseille is a different kind of French experience, so maybe stop off for a day along the way.
Make sure you keep your luggage safe http://safety.worldnomads.com/Worldwide/24483/9-tips-for-keeping-your-luggage-safe
We get a lot of claims for things that "go missing" from overhead luggage racks, and it can be hard to explain that it wasn't "unattended" while you snoozed!
Phil at the Safety Hub almost 6 years ago