Priceline offers a Royal Caribbean 7-Night Mediterranean Cruise for Two bundled with a $25 onboard credit with prices starting at $798. That's the second-lowest rate we've seen for a 7-night Mediterranean cruise. Assuming you use the credit, it's also the lowest current rate we could find for this cruise by $25. This roundtrip cruise departs from Civitavecchia, Italy, on April 28 with stops in Messina, Sicily; Piraeus, Greece; Kusadasi, Turkey; and Souda, Crete. Some restrictions may apply; fees, government taxes, and fuel supplements are additional. Deal ends March 24.