Mariner of the Seas Junior Suites (J3/J4)

Mariner of the Seas has 70 Junior Suite cabins in categories J3 and J4 on decks 9 and 10. Royal Caribbean's deck plan lists J3 and J4 together, so it doesn't show which of them a particular cabin is; the exact category is confirmed when you book. Each cabin below links to its own page with its deck-plan position.

Class: Suite
Category: J3 or J4 · Junior Suite
Cabins: 70
Decks: 9 (44), 10 (26)
Position: 12 forward · 46 midship · 12 aft
Side: 35 port · 35 starboard
Published size: Room 277 sq ft · Balcony 64 sq ft
Deck-plan footprint: 77% to 117% of the ship's average suite
Quiet cabins: 42 of 70 checked

Cabin positions and sizes are taken from the ship's deck plans.

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J3/J4 suite guide

The 70 J3/J4 suites are spread over decks 9 and 10; Deck 9 has the most (44). By position along the ship, 12 forward · 46 midship · 12 aft. By side, 35 port · 35 starboard.

Midship cabins (66% of this category) sit closest to the ship's pivot point, where motion is gentlest in a swell; forward cabins feel the most.

On the deck plans, 42 of these 70 cabins have no public space directly above or below. 28 sit below public space and 3 sit above public space — potential noise, so check the deck above and below before you book.

Measured on the deck plans, footprints in this category range from 77% to 117% of the ship's average suite, so the cabin number matters.

Deck 10 is the highest deck with J3/J4 cabins and Deck 9 the lowest.

Best located: midship, no public space above or below

Watch out: public space directly above

Watch out: public space directly below

Largest footprints

Smallest footprints

Photos

Note: These are representative photos of Category J3 staterooms. Individual cabins may vary slightly.

All 70 J3/J4 suites by deck

Deck 9 · 44 cabins Deck 9 plan

Cabin	Position	Side	Size vs avg	Above / below
9234	Forward	Starboard	−16%	Quiet
9238	Forward	Starboard	−16%	Quiet
9244	Forward	Starboard	−23%	Quiet
9248	Forward	Starboard	−22%	Quiet
9254	Midship	Starboard	−16%	Quiet
9258	Midship	Starboard	−23%	Quiet
9264	Midship	Starboard	−19%	Quiet
9268	Midship	Starboard	−19%	Quiet
9270	Midship	Starboard	−19%	Quiet
9272	Midship	Starboard	−19%	Quiet
9280	Midship	Starboard	−19%	Quiet
9284	Midship	Starboard	−19%	Quiet
9294	Midship	Starboard	−19%	Quiet
9298	Midship	Starboard	−21%	Quiet
9306	Midship	Starboard	−23%	Quiet
9308	Midship	Starboard	−19%	Quiet
9314	Midship	Starboard	−19%	Quiet
9318	Midship	Starboard	−19%	Quiet
9324	Midship	Starboard	−19%	Quiet
9328	Midship	Starboard	−19%	Public space above
9330	Midship	Starboard	−19%	Public space above
9334	Midship	Starboard	−19%	Quiet
9534	Forward	Port	−21%	Quiet
9538	Forward	Port	−15%	Quiet
9544	Forward	Port	−20%	Quiet
9548	Forward	Port	−18%	Quiet
9554	Midship	Port	−22%	Quiet
9558	Midship	Port	−18%	Quiet
9564	Midship	Port	−22%	Quiet
9568	Midship	Port	−18%	Quiet
9570	Midship	Port	−19%	Quiet
9572	Midship	Port	−22%	Quiet
9580	Midship	Port	−15%	Quiet
9584	Midship	Port	−22%	Quiet
9594	Midship	Port	−22%	Quiet
9598	Midship	Port	−16%	Quiet
9606	Midship	Port	−22%	Quiet
9608	Midship	Port	−22%	Quiet
9614	Midship	Port	−19%	Quiet
9618	Midship	Port	−18%	Quiet
9624	Midship	Port	−22%	Quiet
9628	Midship	Port	−13%	Quiet
9630	Midship	Port	−22%	Quiet
9634	Midship	Port	−22%	Quiet

Deck 10 · 26 cabins Deck 10 plan

Cabin	Position	Side	Size vs avg	Above / below
1240	Forward	Starboard	−11%	Public space above
1244	Forward	Starboard	−12%	Public space above
1290	Midship	Starboard	−10%	Public space above
1294	Midship	Starboard	−11%	Public space above
1308	Midship	Starboard	+17%	Public space above
1336	Midship	Starboard	−11%	Public space above
1340	Midship	Starboard	−11%	Public space above
1344	Aft	Starboard	−11%	Public space above
1346	Aft	Starboard	−11%	Public space above
1350	Aft	Starboard	−11%	Public space above
1352	Aft	Starboard	−11%	Public space above
1354	Aft	Starboard	−11%	Public space above
1358	Aft	Starboard	−3%	Public space above
1540	Forward	Port	−12%	Public space above and below
1544	Forward	Port	−12%	Public space above and below
1590	Midship	Port	−10%	Public space above
1594	Midship	Port	−11%	Public space above
1608	Midship	Port	+17%	Public space above
1636	Midship	Port	−11%	Public space above
1640	Midship	Port	−11%	Public space above
1644	Aft	Port	−11%	Public space above
1646	Aft	Port	−11%	Public space above
1650	Aft	Port	−11%	Public space above
1652	Aft	Port	−11%	Public space above
1654	Aft	Port	−11%	Public space above
1658	Aft	Port	−3%	Public space above and below

Mariner of the Seas Junior Suites (J3/J4)

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Shopping for a suite cabin?

In This Guide

J3/J4 suite guide

Best located: midship, no public space above or below

Watch out: public space directly above

Watch out: public space directly below

Largest footprints

Smallest footprints

Photos

All 70 J3/J4 suites by deck

Deck 9 · 44 cabins Deck 9 plan

Deck 10 · 26 cabins Deck 10 plan

Compare and explore

Other suite categories on Mariner of the Seas

Junior Suite (J3/J4) on sister ships

Deck plans with J3/J4 cabins

Suite sailings on Mariner of the Seas

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