7 Night Grand Turk, Bahamas & Key West

Fort Lauderdale cruise port, officially Port Everglades, is one of the busiest cruise ports in the world and the closest major competitor to PortMiami, just 25 miles to the south. It sits on the southeastern coast of Florida across the cities of Fort Lauderdale, Hollywood, and Dania Beach.

Grand Turk is a small, flat island of about 4,000 residents and the capital of the Turks and Caicos Islands, a British Overseas Territory southeast of the Bahamas. Carnival Corporation built a dedicated cruise center on the island's south end, and the vast majority of cruise traffic comes from Carnival Cruise Line ships on Eastern Caribbean and Bahamas itineraries.

Nassau cruise port is one of the most visited in the Caribbean, with up to six ships docking at Prince George Wharf on a busy day. The port sits directly on Bay Street in downtown Nassau, so you're essentially stepping off the ship and into the city.