Groupon Getaways offers a Costa Cruises 7-Night Bahamas Cruise for Two with prices starting at $1,198. (Select Option 1 to see this price.) That's the lowest current rate we could find by $600. This roundtrip cruise aboard the Costa Luminosa departs from Miami, FL, on December 20 and includes stops in Freeport, Bahamas, Grand Turk, Turks & Caicos, and Nassau, Bahamas. Book this travel deal by September 5.