4 Nights on Mariner of the Seas departing on 9/10/26

Cruise LineRoyal Caribbean International

ShipMariner of the Seas

Nights4

DepartsThu, Sep 10th 2026

ReturnsMon, Sep 14th 2026

Departing PortGalveston

Ports of CallGalveston, Cozumel, Galveston

Cruise Planners exclusive pricing

Inside Cabin

From $444 pp*

$110.99/night

Ocean View

From $514 pp*

$128.49/night

Balcony

From $661 pp*

$165.37/night

Suite

From $916 pp*

$228.99/night

* Includes all applicable taxes & fees and are subject to change

Some rates are not combinable with all promotions. Certain restrictions may apply. For full offer details, please contact your Cruise Planners Travel Advisor.

from

$444

Per Person

Request Info View Ship Shore Excursions

Itinerary

Day

Port

Arrive

Depart
Day 1

Port Galveston, Texas

Arrival --

Departure 4:00pm
Day 2

Port At Sea

Arrival --

Departure --
Day 3

Port Cozumel, Mexico

Arrival 7:00am

Departure 5:00pm
Day 4

Port At Sea

Arrival --

Departure --
Day 5

Port Galveston, Texas

Arrival 7:00am

Departure --

Additional Sailings

Ship Details

Year Built

2003

Capacity

3,114

Meeting Rooms

Yes

Elevators

Casino

Yes

Registry

Bahamas

Restaurants

Disco

Yes

Tonnage

138,000

Bars

Fitness Center

Yes

Cabins

1,557

Pools

Children's Program

Yes

Wheelchair Accessible Cabins

Theaters

Yes

Internet Cafe

Yes

Shops

Yes

Library

Yes

Spa

Yes

Ship Categories

Spacious Sunset Balcony

Larger room with dramatic aft-facing views Extra stateroom square footage Private balcony at the back of the ship Size Stateroom: 203 sq. ft. Balcony: 42 sq. ft. Beds Two twin beds that convert to a Royal King bed One double sofa bed in staterooms with up to 4 Occupancy Up to 4 guests Views Ocean view Some staterooms have an obstructed view Living Spaces Room with bed, vanity and sitting area with sofa Bathrooms One bathroom What's 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

Sunset Balcony

Dramatic aft-facing views Private balcony at the back of the ship Size Stateroom: 198 sq. ft. Balcony: 46 sq. ft. Beds Two twin beds that convert to a Royal King bed One Pullman bed or single sofa bed in staterooms with up to 3 guests One double sofa bed in staterooms with up to 4 guests Occupancy Up to 4 guests Views Ocean view Some staterooms have an obstructed view Rooms Room with bed, vanity and sitting area with sofa Bathrooms One bathroom What's 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

Sunset Junior Suite

Enjoy “suite” and dramatic aft-facing views Private balcony at the back of the ship Size Stateroom: 277 sq. ft. Balcony: 46 sq. ft. Beds Two twin beds that convert to a Royal King bed One double sofa bed in staterooms with up to 4 guests Occupancy Up to 4 guests Views Ocean view Some staterooms have an obstructed view Rooms Room with bed, vanity and sitting area with sofa Bathrooms Private bathroom with bathtub What's 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

Ocean View Stateroom with Balcony Guarantee

Vast views of the landscapes, seascapes and skies are yours to enjoy from your private balcony. Beds 2 twin beds (can convert to a Royal King, measuring 184 cm (72.5 in) wide by 208 cm (82 in) long) Occupancy 2-4 guests Size Varies by ship

Ocean View Guarantee

Our Ocean View staterooms offer a gorgeous view, two twin beds and a private bathroom Beds 2 twin beds (can convert to a Royal King, measuring 184 cm (72.5 in) wide by 208 cm (82 in) long) Select rooms include Pullman beds Occupancy 3-4 guests Size Varies by ship

Deluxe/Suite Guarantee

These suites offer a comfortable bedroom, a small sitting area and a private balcony. Beds 2 twin beds (can convert to a Royal King, measuring 184 cm (72.5 in) wide by 208 cm (82 in) long) Sofa bed Occupancy 3-4 guests Size Varies by ship

Interior Guarantee

This standard stateroom offers two twin beds, a private bathroom and all the facilities of our standard staterooms. Beds 2 twin beds (can convert to a Royal King, measuring 184 cm (72.5 in) wide by 208 cm (82 in) long) Pullman beds Occupancy 2-4 guests Size Varies by ship

Connecting Promenade

Delight in bowed windows overlooking the Royal Promenade. Size Stateroom: 160 sq. ft. or 14.86 sq. m. Beds Two twin beds that convert to a Royal King bed Occupancy Up to 2 guests Views Royal Promenade View Rooms Room with bed, dresser and sitting area with sofa Bathrooms One bathroom

Connecting Ocean View Balcony

Experience a spectacular view for a memorable holiday. Size Stateroom: 198 sq. ft. or 18.39 sq. m. Balcony: 42 sq. ft. or 3.9 sq. m. Bed Two twin beds that convert to a Royal King bed Occupancy Up to 2 guests Views Ocean View Rooms Room with bed, dresser and sitting area with sofa Bathrooms One bathroom

Ocean View

Two twin beds that convert to Royal King, private bathroom and sitting area

Studio Interior

Studio Interior One twin bed, vanity area, and bathroom. Accommodates 1 guest. Stateroom: 106 sq. ft

Promenade View Interior

Promenade View Interior A view of the Royal Promenade with bowed windows, two twin beds that convert to Royal King and private bathroom. Up to 2 guests Stateroom: 167 sq. ft.

Ocean View Panoramic Suite

Two twin beds that convert to Royal King. Curtained section with bunk beds. Living area with double sofa bed, vanity and sitting area. One and a half baths with shower. Floor to ceiling wrap around panoramic windows

Spacious Panoramic Ocean View

Two twin beds convert to Royal King. Double sofa bed for quad staterooms. Vanity with sitting area, Private bathroom with shower. Floor to Ceiling wrap around panoramic window.

Interior

Two twin beds that convert to Royal King sitting area with sofa, vanity area, and bathroom.

Inside

Two twin beds that convert to Royal King sitting area with sofa, vanity area, and bathroom.

Spacious Ocean View

Two twin beds that convert to Royal King, sitting area with sofa, vanity area and bathroom.

Ultra Spacious Ocean View

Two twin beds that convert to Royal King, two Pullman beds in separate area, separate sitting area with sofa bed and bathroom

Ocean View Balcony

Two twin beds that convert to Royal King, sitting area with sofa, private balcony and bathroom

Balcony

Two twin beds that convert to Royal King, sitting area with sofa, private balcony and bathroom

Spacious Ocean View Balcony

Two twin beds that convert to Royal King, sitting area with sofa, vanity area and bathroom.

Junior Suite

Two twin beds that convert to Royal King, private balcony, sitting area with sofa and bathroom with tub.

Grand Suite 2 bedrooms

Two bedrooms with two twin beds that convert to Royal King (one room with third and fourth Pullman beds), balcony, two bathrooms (one with tub) and living area with double sofa bed.

Royal Suite with Balcony

Grand entrance with doorbell. Bedroom with king-size bed, and private bathroom with tub, private balcony with whirlpool, living room with queen-size sofa bed and baby grand piano

Owners Suite - 1 Bedroom

Marble entry with door bell. Queen-size bed, bathroom with tub. Separate living area with a queen-size sofa bed.

Grand Suite - 1 Bedroom

Marble entry. Room has two twin beds that convert to Royal King, private balcony, sitting area with double sofa bed and bathroom with tub

Prices are per person, double occupancy, cruise only and on select sailings. Prices shown are for stateroom categories as noted and are shown in US Dollars. Pricing listed includes taxes and fees. Airfare is not included. Prices and itineraries are based on availability and are subject to change without notice.