Cruise.com via ShermansCruise offers a Disney Cruise Line 4-Night Caribbean Cruise for two with prices starting from $1,632. (On the ShermansCruise landing page, scroll to the bottom and click "Book Now" next to the April 11 sailing date.) That's the lowest price we could find for this cruise by $296. This roundtrip cruise aboard the Disney Magic ship departs from Miami, FL, on April 11. Book this travel deal by March 31.