I am looking at the deck plans for Harmony of the Seas right now on CruiseMapper (https://www.cruisemapper.com/deckplans/Symphony-Of-The-Seas-1730/deck18-5113) and on deck 18 it states this: “Blown Away” (zone 6-B, starboard aft) is a stairway passage leading to the unofficial (secret) deck 19. This is the highest passenger-accessible vantage point of the Symphony cruise ship. There is a small seating area (few wicker tables/chairs) and can be seen the ship’s funnels (with the RCI’s anchor