When you're looking for a vacation the whole family can enjoy, a Mediterranean cruise ticks all the boxes. Sunshine, a variety of ports of call, entertainment for young and old: it's all there for everyone to enjoy. What's more, the comfort of a cruise ship means you don't have to change hotels every other day. It's an option that's winning over more and more French families, especially during the school vacations. So why is this formula becoming a reflex for parents?