The biggest "new" cruise ship sailing out of Miami in 2026 is Royal Caribbean’s Star of the Seas, which officially debuted in late 2025 as the second "Icon-class" vessel. Following the record-breaking success of its sister ship, Icon of the Seas, the Star of the Seas is a 250,000-ton "mega-resort" featuring 20 decks and 40 different restaurants and bars. Its most famous feature is Category 6, the largest water park at sea, which includes six record-breaking slides and the "Crown's Edge" thrill walk. It also features the signature AquaDome, a high-tech entertainment hub with a 55-foot waterfall that serves as a backdrop for high-diving and aerial shows. Sailing 7-night Eastern and Western Caribbean itineraries, it has transformed the PortMiami skyline with its colorful hull and massive scale. In 2026, it is the primary competitor for other new Miami-based ships like Carnival's Celebration and the newest Virgin Voyages ships, offering a "city-at-sea" experience that focuses heavily on high-tech sustainability, including being powered by liquefied natural gas (LNG) to significantly reduce its environmental footprint.