Type a cabin number to see where it is on Harmony of the Seas, what's above and below it, and how quiet it's likely to be — or browse the quietest cabins in each category.
The deck plan shows decks 3–18. Cabins are on decks 3–4, 6–14, 17; the other decks have public areas, crew or service spaces. Decks below 3 aren't on the cruise line's plan (usually crew and service areas).
This deck plan is for sailings until April 10, 2027. Royal Caribbean has a newer plan for later sailings, so check the official plan if you sail after that.
The quietest cabins of each type, by our quiet score. Prices and availability vary by sailing.
353 cabins of this type. 12273 (Deck 12, midship, quiet score 100) · 12673 (Deck 12, midship, quiet score 100) · 12271 (Deck 12, midship, quiet score 100) · 11271 (Deck 11, midship, quiet score 100) · 11273 (Deck 11, midship, quiet score 100)
123 cabins of this type. 6603 (Deck 6, midship, quiet score 97) · 6601 (Deck 6, midship, quiet score 97) · 6599 (Deck 6, midship, quiet score 97) · 6597 (Deck 6, midship, quiet score 97) · 6595 (Deck 6, midship, quiet score 97)
68 cabins of this type. 10151 (Deck 10, forward, quiet score 100) · 10551 (Deck 10, forward, quiet score 100) · 9145 (Deck 9, forward, quiet score 100) · 9545 (Deck 9, forward, quiet score 100) · 9143 (Deck 9, forward, quiet score 100)
62 cabins of this type. 9249 (Deck 9, midship, quiet score 97) · 9649 (Deck 9, midship, quiet score 97) · 9247 (Deck 9, midship, quiet score 97) · 9647 (Deck 9, midship, quiet score 97) · 9245 (Deck 9, midship, quiet score 97)
24 cabins of this type. 7603 (Deck 7, midship, quiet score 90) · 7601 (Deck 7, midship, quiet score 90) · 7599 (Deck 7, midship, quiet score 90) · 7597 (Deck 7, midship, quiet score 90) · 7191 (Deck 7, midship, quiet score 90)
5 cabins of this type. 11149 (Deck 11, forward, quiet score 92) · 3806 (Deck 3, midship, quiet score 80) · 11147 (Deck 11, forward, quiet score 75) · 11139 (Deck 11, forward, quiet score 75) · 11137 (Deck 11, forward, quiet score 75)
89 cabins of this type. 7128 (Deck 7, forward, quiet score 96) · 7528 (Deck 7, forward, quiet score 96) · 7526 (Deck 7, forward, quiet score 92) · 7126 (Deck 7, forward, quiet score 92) · 7524 (Deck 7, forward, quiet score 92)
79 cabins of this type. 3652 (Deck 3, midship, quiet score 100) · 3654 (Deck 3, midship, quiet score 100) · 3656 (Deck 3, midship, quiet score 100) · 3650 (Deck 3, midship, quiet score 97) · 3648 (Deck 3, midship, quiet score 97)
12 cabins of this type. 4662 (Deck 4, midship, quiet score 90) · 4664 (Deck 4, midship, quiet score 90) · 4666 (Deck 4, midship, quiet score 86) · 4668 (Deck 4, midship, quiet score 86) · 4670 (Deck 4, midship, quiet score 82)
8 cabins of this type. 11134 (Deck 11, forward, quiet score 90) · 11534 (Deck 11, forward, quiet score 90) · 11132 (Deck 11, forward, quiet score 90) · 11532 (Deck 11, forward, quiet score 90) · 11128 (Deck 11, forward, quiet score 86)
2 cabins of this type. 14526 (Deck 14, forward, quiet score 75) · 14126 (Deck 14, forward, quiet score 67)
903 cabins of this type. 7218 (Deck 7, midship, quiet score 100) · 7618 (Deck 7, midship, quiet score 100) · 12276 (Deck 12, midship, quiet score 100) · 12676 (Deck 12, midship, quiet score 100) · 7216 (Deck 7, midship, quiet score 100)
We place every cabin on its deck from the official deck plan, then look at what's directly above and below it and what's next to it. Cabins sandwiched between other cabins, away from venues, stairs and the very ends of the ship, score highest.
Royal Caribbean's deck plan doesn't label connecting, accessible or obstructed-view cabins, so we don't flag them here. Check with the cruise line before you book.
This ship's deck plan doesn't show where bars, pools and restaurants are, so "no cabins" above or below could be a public area. Check the deck plan.
The quiet score doesn't include size. In our deck plan data, cabins of the same type are about the same size wherever they are on the ship — forward, midship or aft. Bigger rooms are sold as their own categories (for example Extended Balcony or Aft-View Extended Balcony), so compare categories, and check each one's size on the cruise line's site before you book.
Built from the cruise line's published deck plan, which can change after refits. Venue positions are approximate. Always confirm with the cruise line before you book.
Sources: Royal Caribbean — Harmony of the Seas deck plans and ship facts, Wikipedia — Harmony of the Seas. Deck plan data checked 2026-11-01