Mariner of the Seas - December 4, 2025 Itinerary Map with Port Markers
Mariner of the Seas
Galveston, Texas
Cozumel, Mexico
Galveston, Texas

Mariner of the Seas - December 4, 2025

The December 4, 2025 cruise on the Mariner of the Seas departs from Galveston, Texas. On this 4 Night Western Caribbean (Galveston Roundtrip) sailing, the ship will visit a total of 2 different cruise port destinations, including its departure port. The Mariner of the Seas sets sail on Thursday, Dec 4th and returns on Monday, Dec 8th.

4nights

December 4, 2025

Dec 4th - Dec 8th

Mariner of the Seas

Mariner of the Seas

Royal Caribbean Cruise Line

Mariner of the Seas - December 4, 2025

4 Night Western Caribbean

from Galveston, Texas

Cruise Price - Historic & Current

The graph below tracks historic price of the Mariner of the Seas cruise ship departing December 4, 2025. The most recent price for this sailing starts at $520 ($130 per night) for an Inside Cabin. Compared to the average price of $384 ($97 per night), this represents a recent increase of 35%.

Use the buttons below to toggle between cabin types.

inside
$520
($130 / night)
see details
oceanview
$544
($136 / night)
see details
balcony
$686
($171 / night)
see details
suite
$1,037
($259 / night)
see details
Mariner of the Seas Size Infographic

Mariner of the Seas

139 k
tonnage
1,020 ft
length
2003
year built
1,674
cabins
3,114
passengers
1,185
crew

MARINER OF THE SEAS SIZE

The Mariner of the Seas has a construction date of 2003 and a total size of 138,279 gross tons. The ship measures 1,020 feet (311 meters) in length. Mariner of the Seas is included in Royal Caribbean’s Voyager Class. At full capacity, the Mariner of the Seas holds 4,299 passengers. That includes 3,114 cruise vacationers and 1,185 staff members. The Mariner of the Seas total number of staterooms is 1,674.

Mariner of the Seas Size & Stats

  • Gross Tonnage:138,279 GT
  • Length:1,020 ft (311 m)
  • Beam:127 ft (39 m)
  • Draft:29 ft (9 m)
  • Max Speed:27 mph (23 kn)
  • Year Built:2003
  • Years Served:2003-Present
  • Capacity:3,114
  • Crew Members:1,185
  • Total on Board:4,299
  • Total Staterooms:1,674
  • Flagged Country:Bahamas
  • Ship Cost:500 Million
  • Status:active

To see how this compares, click through to see Mariner of the Seas age and stats vs all Royal Caribbean ships. There you’ll find graphs showing length, capacity, tonnage and more for this ship vs all in the fleet.

To check out the ship from top to bottom, click here for Mariner of the Seas Deck Plans.

Itinerary

Mariner of the Seas - December 4, 2025 - 4 Nights

DayDatePort
1Dec 3rdGalveston, Texas
2Dec 4thAt Sea
3Dec 6thCozumel, Mexico
4Dec 6thAt Sea
5Dec 8thGalveston, Texas

Cruise Itinerary

The Mariner of the Seas sails on December 4, 2025 for a 4 Night Western Caribbean (Galveston Roundtrip). The ship will depart the port of Galveston, Texas at 3:00 PM and will return to the port of Galveston, Texas on Dec 8th at 6:00 AM. During the 5-day journey, the Mariner of the Seas will visit 1 additional port and will spend 2 days at sea.

Day1
DEC 42025
United States
D:3:00 PM

Galveston, Texas offers everything from entertainment to shopping, to over 32 miles of Gulf Coast beaches. Galveston's festivals, special events and attractions are enjoyable for islanders and tourists alike. Arts and entertainment is as much a part of the area's history as its Victorian architecture, and Galveston sparkles at night, from theater, music and dance, to reggae, rock and country.

Day2
DEC 52025
At Sea

Take advantage of the many on board activites during your day at sea. You'll have more than enough to fill your day!

Day3
DEC 62025
A:6:00 AMD:4:00 PM

Sitting just off the gorgeous Yucatan coast, Cozumel revels in its mythic white-sand beaches and world-class coral reefs. Yet Cozumel is also the last stronghold of the Mayas, who settled the island in 300 A.D. Residents still speak Maya, and sometimes wear traditional Mayan clothing. Nearby stand the great pyramids and temples of their ancestors.

Day4
DEC 72025
At Sea

Take advantage of the many on board activites during your day at sea. You'll have more than enough to fill your day!

Day5
DEC 82025
United States
A:6:00 AM

Galveston, Texas offers everything from entertainment to shopping, to over 32 miles of Gulf Coast beaches. Galveston's festivals, special events and attractions are enjoyable for islanders and tourists alike. Arts and entertainment is as much a part of the area's history as its Victorian architecture, and Galveston sparkles at night, from theater, music and dance, to reggae, rock and country.