Mariner of the Seas - December 29, 2025 Itinerary Map with Port Markers
Mariner of the Seas
Galveston, Texas
Costa Maya
Belize City, Beli

Mariner of the Seas - December 29, 2025

The December 29, 2025 cruise on the Mariner of the Seas departs from Galveston, Texas. On this 7 Night Western Caribbean Holiday (Galveston Roundtrip) sailing, the ship will visit a total of 5 different cruise port destinations, including its departure port. The Mariner of the Seas sets sail on Monday, Dec 29th and returns on Monday, Jan 5th.

7nights

December 29, 2025

Dec 29th - Jan 5th

Mariner of the Seas

Mariner of the Seas

Royal Caribbean Cruise Line

Mariner of the Seas - December 29, 2025

7 Night Western Caribbean Holiday

from Galveston, Texas

Cruise Price - Historic & Current

The graph below tracks historic price of the Mariner of the Seas cruise ship departing December 29, 2025. The most recent price for this sailing starts at $1,080 ($155 per night) for an Inside Cabin. Compared to the average price of $1,023 ($147 per night), this represents a recent increase of 6%.

Use the buttons below to toggle between cabin types.

inside
$1,080
($154 / night)
see details
oceanview
$1,336
($190 / night)
see details
balcony
$1,866
($266 / night)
see details
suite
$2,698
($385 / 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 29, 2025 - 7 Nights

DayDatePort
1Dec 28thGalveston, Texas
2Dec 29thAt Sea
3Dec 31stCosta Maya (Mahahual), Mexico
4Jan 1stBelize City, Belize
5Jan 2ndCoxen Hole, Roatan, Bay Islands, Honduras
6Jan 3rdCozumel, Mexico
7Jan 3rdAt Sea
8Jan 5thGalveston, Texas

Cruise Itinerary

The Mariner of the Seas sails on December 29, 2025 for a 7 Night Western Caribbean Holiday (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 Jan 5th at 6:00 AM. During the 8-day journey, the Mariner of the Seas will visit 4 additional ports and will spend 2 days at sea.

Day1
DEC 292025
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 302025
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 312025
A:10:59 AMD:6:00 PM

Costa Maya is located on the Mayan Riviera, so named because was the home of the Mayans. Lush jungle vegetation is juxtaposed with beautiful beaches that have recently become the destination for scuba divers and snorkelers wishing to explore the untouched coral reef. or take a drive through the jungle and see an amazing combination of birds and mammals, like the wild deer and jaguars, spider monkeys, monkeys, and even alligators.

Day4
JAN 12026
A:6:00 AMD:4:00 PM

Belize City is the country's chief seaport, so snorkeling and diving is big here...bring a suit! Travel to a city previously inhabited by the Mayan people at Altun Ha, ancient temple of the Sun God. Or visit the Belize Zoo or Baboon Sanctuary. Gales Point is a great place to view manatees!

Day5
JAN 22026
A:6:00 AMD:2:00 PM

Located approximately 35 miles north of Honduras in the Caribbean, Roatan is the largest of the Bay Islands group. Plenty of great snorkeling and diving is found at the coral reefs off Roatan's coast.

Day6
JAN 32026
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.

Day7
JAN 42026
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!

Day8
JAN 52026
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.