The terminal was built specifically for Mardi Gras, which is powered by liquified natural gas (LNG) and features what Carnival claims is the first rollercoaster at sea.
More than 1,500 Carnival fans lined Jetty Park adjacent to the terminal to welcome the liner.
Christine Duffy, Carnival president said: "Mardi Gras has been five years in the making and today’s arrival is a historic milestone for our company, not to mention a truly emotional moment for everyone here at Carnival Cruise Line.
"This ship offers so many innovations and ways for our guests to choose fun that we are certain that she will quickly become a guest favourite"
