8-Night Panama Canal from Miami

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.

Costa Maya cruise port sits on the southern tip of Mexico's Caribbean coast, about 150 miles south of Cancun and close to the border with Belize. The port is not a city.

Belize City is the largest city in Belize, a small Central American country on the Caribbean coast known for its barrier reef (the second largest in the world), jungle ruins, and laid-back culture. The city itself has about 60,000 residents and a rough, unpolished feel that can surprise passengers expecting a typical Caribbean port.

Cozumel cruise port is one of the busiest in the Caribbean, with multiple ships docking on the island every day during peak season. Cozumel is a flat, laid-back island off the eastern coast of Mexico's Yucatán Peninsula, and it's been a cruise staple for decades.