變更

* 2018年4月7日，官方首航。<ref name="orlsent20180324">{{Cite news|url=http://www.orlandosentinel.com/travel/florida-cruise-guide/os-royal-caribbean-symphony-of-the-seas-delivery-20180324-story.html|title=Royal Caribbean takes delivery of world's largest cruise ship|last=Tribou|first=Richard|date=24 March 2018|work=Orlando Sentinel|accessdate=25 March 2018}}</ref>

海洋交响号全长362米（1188英尺），总吨位228,081英吨，拥有18层甲板。它可以容纳5518名乘客（双人入住），最多可容纳6680名乘客。

船上设施包含一个儿童水上乐园，一个全尺寸篮球场，一个溜冰场，以及两个43英尺攀岩墙。<ref>{{Cite news|url=http://www.foxnews.com/travel/2017/03/09/meet-new-largest-cruise-ship-in-world.html|title=Meet the new largest cruise ship in the world|last=Becker|first=Kayla|date=9 March 2017|work=Fox News}}</ref><ref>{{Cite web|url=http://www.royalcaribbean.com/findacruise/ships/class/ship/home.do?shipClassCode=OA&shipCode=SY&dest=EUROP|title=Symphony of the Seas|publisher=Royal Caribbean International|accessdate=16 March 2017}}</ref>

在它的首个航行季中，海洋交响号会从西班牙巴塞罗那出发开启7日西地中海巡游。2018年10月28日，它会把母港移至美国佛罗里达[[邁阿密港|迈阿密港]]。2018年11月，它将会开始加勒比海巡游。<ref>{{Cite news|url=http://www.sun-sentinel.com/business/fl-bz-royal-caribbean-new-miami-terminal-20170308-story.html|title=Symphony of the Seas, the next world's largest cruise ship to sail from Miami in late 2018|last=Satchell|first=Arlene|date=8 March 2017|work=[[Sun-Sentinel]]}}</ref>