All the best cruise lines of the world, like the Royal Caribbean International, Princess cruises, Crystal Cruises, Disney cruise line, Carnival, Costa and Holland America will be spending spring, summer and autumn in the Mediterranean in 2017.
You just need to spread out your Mediterranean maps and decide whether you'd rather be visiting the:
1) Eastern Mediterranean, which can include ports in Croatia (the Adriatic coast), the eastern coast of Italy. Montenegro, Greece, Turkey, Cyprus, the Holy Land. and Egypt .
Here's the Eastern Mediterranean ports you can read about on my website: