11K views · 158 reactions | All four corners, one epic voyage. Introducing the Ultimate World Cruise, setting sail onboard Serenade of the Seas for 274 consecutive nights across seven continents, more than 60 countries, 11 World Wonders, and endless adventures. This is the world cruise of world cruises - debuting December 2023  Learn more: https://www.royalcaribbean.com/worldcruise | Royal Caribbean International | Facebook