Port Miami welcomed a total of 4.8 million cruise passengers in 2016, making it the world's busiest port.
Port Everglades, Fort Lauderdale and Port Canaveral, Cape Canaveral were the 2nd and 3rd busiest, featuring combined traffic of over 7.5 million cruisers. It is no surprise the Caribbean is the world's top cruise destination.
Numbers may grow, as more cruise lines schedule more voyages to Cuba. NCL (Norwegian Cruise Line), for example, started sailing from Miami to Cuba this May and plans to send a 2nd cruise ship to Port Canaveral in 2018 for trips to the island.