Mariner of the Seas J3 Suite Cabins
Cabin category J3 is a suite on Mariner of the Seas: 74 J3 cabins on decks 9, 10 and 11, each 277 sq ft with a 64 sq ft balcony.

Mariner of the Seas J3 suite floor plan

- Sleeps
- Up to 2 guests
- Beds
- One Royal King bed (can convert into two twin-size beds) · One double sofa bed in staterooms with up to 4 guests
- Bathroom
- One bathroom with tub
- Living space
- Room with bed, vanity and sitting area with sofa
How Mariner of the Seas J3 cabins compare
Mariner of the Seas J3 suite cabins are the same 277 sq ft as 1 other suite category, with a 64 sq ft balcony; 22% of its cabins connect to a neighbor.
J3: 277 sq ft · tied #6 with 1 other of 7 suite categories
Find Mariner of the Seas J3 cabins on the deck plan
Deck 9 · 44 J3 cabins
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Only what's different from J3 is shown.
Where J3 suite cabins sit on Mariner of the Seas
Spread from bow to stern: 38% forward, 30% midship and 32% aft. J3 cabins are on decks 9, 10 and 11; deck 9 has the most (44).
What's inside a Mariner of the Seas J3 suite
An incredible ocean view from a private balcony, plus a cozy sitting area makes this an intimate suite. On Mariner of the Seas, Junior Suite staterooms (category J3) measure 277 sq ft, plus a 64 sq ft balcony, and sleep up to 4 guests. Beds: one Royal King bed that converts into two twin beds and one double sofa bed (in rooms for 4). It has one bathroom with tub. Mariner of the Seas has 74 J3 cabins, on decks 9–11.
One bathroom with tub. Room with bed, vanity and sitting area with sofa.
Included
- Dedicated stateroom attendant
- Daily cleaning service
- Exclusive bedding collection
- Stateroom climate control
- Ample closet and storage
- In-room HD-TV
- In-room safe for valuables
- Hair dryer
- Deluxe toiletries: shampoo, conditioner & body wash
Mariner of the Seas J3 cabin photos





All 74 cabins in category J3
Deck 9
44 cabinsDeck 10
26 cabinsKnown issues in cabin category J3
No issues recorded for J3 cabins.
Suite prices on Mariner of the Seas
Prices are by cabin type. We don't price individual categories like J3; "See suite fares" opens current suite fares with our booking partner.
Suite is $71 more per night than a balcony.
28% of upcoming Suite sailings are currently below their recent average fare.
J3 on other Royal Caribbean ships
Mariner of the Seas J3 cabin FAQ
How big is a Mariner of the Seas J3 suite?
277 sq ft inside plus a 64 sq ft balcony: 341 sq ft in total.
How many Mariner of the Seas J3 cabins are there, and on which decks?
74 cabins: 44 on deck 9, 26 on deck 10 and 4 on deck 11.
How many people can stay in a Mariner of the Seas J3 cabin?
Up to two, in every J3 cabin with a recorded occupancy.
What's the difference between cabin category J3 and JT on Mariner of the Seas?
J3 cabins are 18 sq ft larger in total (341 vs 323 sq ft). JT cabins are on decks 6, 7 and 10; J3 cabins are higher, on decks 9, 10 and 11.
Do Mariner of the Seas J3 cabins connect?
Yes: 16 of the 74 J3 cabins (22%) connect to a neighboring cabin.


