3 of the world's biggest cruise ships soon will battle for supremacy out of Miami

Get ready for the Battle of the Cruise Ship Giants out of Miami.

Fast-growing MSC Cruises on Thursday officially announced its North America schedule for the summer of 2025, including a Miami deployment that will set the stage for an epic matchup between three of the world's biggest cruise vessels.

As part of the announcement, MSC Cruises confirmed that its soon-to-debut MSC World America would sail from Miami from April 2025 through at least October 2025. This will place it in a head-to-head matchup with Royal Caribbean's just-unveiled Icon of the Seas and Carnival Cruise Line's one-year-old Carnival Celebration.

All three of the vessels will be the biggest in their respective fleets.

Scheduled to begin sailing in April 2025, MSC World America will be the world's seventh-biggest cruise ship when it debuts and the biggest MSC Cruises ship ever deployed to North America. Unveiled in January, Icon of the Seas is the world's biggest cruise ship.

Dating to November 2022, Carnival Celebration is the world's 14th biggest cruise ship.

For the summer of 2025, both MSC World America and Icon of the Seas will sail from Miami on Saturdays on seven-night trips to the Caribbean. Carnival Celebration will sail out of Miami on Sundays on six- to eight-night trips to the Caribbean.

As confirmed on Thursday, MSC World America will operate alternating itineraries to the Eastern Caribbean and Western Caribbean.

• Eastern Caribbean voyages will bring stops at Puerto Plata, Dominican Republic; San Juan, Puerto Rico; and Ocean Cay, MSC Cruises' private island in the Bahamas.
• Western Caribbean sailings will stop at Costa Maya and Cozumel in Mexico; Roatan, Honduras; and Ocean Cay.

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Icon of the Seas will rotate among four different itineraries across the Eastern and Western Caribbean that bring visits to such destinations as St. Thomas; St. Maarten (the Dutch side of the island of St. Martin); Roatan; and Costa Maya and Cozumel, Mexico.

Related: Yikes, does Icon of the Seas really cost that much?

Carnival Celebration will mostly sail to Eastern Caribbean destinations such as St. Thomas, San Juan and Amber Cove in the Dominican Republic. It'll also operate some Southern Caribbean cruises.

The matchup between MSC World America and Icon of the Seas is particularly notable as it marks the first time vessels measuring more than 200,000 tons from two different cruise brands have competed on sailings out of a North American port.

Giants of the seas

MSC Cruises and Royal Caribbean are currently the only cruise brands in the world with ships measuring more than 200,000 tons. MSC World America is expected to measure around 216,000 tons. Icon of the Seas measures 248,663 tons. Carnival Celebration measures 183,521 tons.

All three vessels are among the most venue-filled in their respective fleets, with dozens of restaurants, bars, showrooms and over-the-top attractions on the decks.

Related: Our first impressions of the giant Icon of the Seas

MSC World America and Icon of the Seas, in particular, have several similarities, including public area venues segmented into "districts," as MSC Cruises calls them. Royal Caribbean calls them "neighborhoods."

Both ships have been designed around a central interior promenade with entertainment, shops and bars.

Among the standout features planned for MSC World America will be an Aquapark with multiple waterslides that integrate virtual reality technology. MSC Cruises also announced last week that the ship would have what's billed as the only overwater swing ride at sea; the attraction is called Cliffhanger, and it's suspended 160 feet above the water.

MSC World America will also have six pools and 14 hot tubs, making it one of the most pool-covered ships at sea.

Related: The 6 types of MSC Cruises ships, explained

As part of its Thursday announcement, MSC Cruises confirmed summer 2025 plans for three other vessels sailing out of North American ports:

• The 4,540-passenger MSC Seascape will operate three-, four- and seven-night itineraries from Miami departing on Thursdays and Sundays. Stops will include Nassau, Bahamas; San Juan; Puerto Plata; Jamaica; Grand Cayman; and Ocean Cay.
• The 4,488-passenger MSC Meraviglia will operate seven-night itineraries from New York City to Florida and the Bahamas and Bermuda, departing on Sundays. Stops on the Bahamas cruises will be Port Canaveral, Florida; Nassau; and Ocean Cay. The Bermuda cruises will bring an extended call at Bermuda's Royal Naval Dockyard.
• The 4,540-passenger MSC Seashore will operate three-, four- and seven-night itineraries from Port Canaveral with a range of port options departing Thursdays and Sundays.

All three of the vessels are among the 25 biggest cruise ships in the world.

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