Posted: via ShermansCruise offers a Royal Caribbean 4-Night Cozumel Cruise for two, with prices starting from $558. That's the lowest price we could find by $76. Book this travel deal by May 31. Shop Now Tips On the ShermansCruise landing page, scroll down and click "Book Now" next to the October 14 sailing date. This roundtrip cruise aboard the Enchantment of the Seas departs from Galveston, TX, on October 14. Additional taxes and fees apply.