Oceania Sirena: 65-Night World

Miami cruise port, officially called PortMiami, is the busiest cruise port in the world by passenger volume. Millions of people pass through here every year, and nearly every major cruise line uses it as a home port.

Grand Cayman is the largest of the three Cayman Islands, a British Overseas Territory in the western Caribbean known for Seven Mile Beach, exceptional diving, and its role as a major offshore financial center. George Town serves as the cruise port, but there's no pier large enough for cruise ships.

Cartagena de Indias is a Caribbean port city of about 1 million people on Colombia's northern coast, and one of the best-preserved colonial cities in the Americas. The walled old city (Ciudad Amurallada) is a UNESCO World Heritage Site, built by the Spanish starting in the 16th century to protect the gold and silver being shipped back to Europe.

Colon sits at the Atlantic (Caribbean) entrance to the Panama Canal, serving as the port of call for ships that transit the canal or stop before or after the crossing. The Colon 2000 cruise terminal and the nearby Cristobal pier handle the cruise traffic, both located away from the city center in secure port compounds.

Buenos Aires is Argentina's capital and the primary embarkation port for cruise itineraries to Patagonia, the Falkland Islands, Antarctica, and around South America. The cruise terminal (Terminal de Cruceros Benito Quinquela Martin) is in the Puerto Madero/La Boca area on the Rio de la Plata, about 3 km from the city center.

Rio de Janeiro is one of the most visually dramatic cities on earth, set between granite peaks, tropical forest, and Atlantic beaches. The city of about 6.

Barbados cruise port is in Bridgetown, the capital of the easternmost Caribbean island. Bridgetown Port (Deep Water Harbour) sits just outside the city's UNESCO-listed historic center, with modern terminal facilities including 21 duty-free shops, restaurants, car rental agencies, and a tourism office.

Pointe-a-Pitre is the economic capital of Guadeloupe, a French overseas department in the Lesser Antilles that gives you Caribbean beaches with French culture, cuisine, and infrastructure. The archipelago consists of two main islands shaped like a butterfly: Grande-Terre (flat, with beaches and sugar cane) and Basse-Terre (mountainous, with rainforest and a live volcano).

Tortola is the largest of the British Virgin Islands, a mountainous, lush Caribbean island where Road Town serves as the capital of this British Overseas Territory. The cruise port at Road Town Pier Park handles two large ships simultaneously (up to 180,000 GT).