Vacations To Go offers a Carnival Cruise 7-Night Eastern Caribbean Cruise for Two with prices starting at $618. (If prompted, sign up for the free newsletter to see this deal.) That's the lowest price we could find for a 7-night Eastern Caribbean cruise with this itinerary by $60. This roundtrip cruise aboard the Carnival Sunshine departs from Port Canaveral, FL, on November 29 with stops in St. Thomas, U.S. Virgin Islands; San Juan, Puerto Rico; and Grand Turk, Turks & Caicos Islands. This travel deal ends November 1.