Posted: via ShermansCruise offers a Princess Cruises 4-Night Cozumel Cruise for Two with prices starting from $558. (On the ShermansCruise landing page, scroll to the bottom and click "Book Now" next to the May 14 sailing date; we found lower rates during booking.) That's the lowest price we could find by $100. This roundtrip cruise aboard the Caribbean Princess departs from Fort Lauderdale, FL, on May 14. Book this travel deal by March 31.