Royal Caribbean International’s Oasis-class ships, Oasis of the Seas, Allure of the Seas and the new Harmony of the Seas, greeted each other at sea for the first and possibly only time. In a meeting of unprecedented proportions, the three record-breaking sisters came together to celebrate the U.S. arrival of Harmony of the Seas to her new permanent homeport of Port Everglades in Fort Lauderdale, Florida.