| Year of build: | 2003 |
| Last Refurbishment: | 2023 |
| Class: | RCI VOYAGER |
| Builder: | Kvaerner Masa-Yards (Turku, STX Finland) |
| Building cost: | USD 650 million (2018 Royal Amplified USD 100 million) |
| Engines (power): | Wartsila (75.6 MW / 101381 hp) |
| Engines (propulsion): | 47 MW / 63028 hp |
| Speed: | 24 kt |
| Length (LOA): | 311 m |
| Beam (width): | 49 m |
| Gross Tonnage: | 138279 GT |
| Passaengers (min - max): | 3334 - 4001 (min - max) | |
| Crew: | 1215 | |
| Passengers-to-space ratio: | 35 | |
| Decks: | 15 | |
| Cabins: | 1667 | |
| Decks with cabins: | 9 | |
| Sister-ships: | Adventure OTS, Explorer OTS, Navigator OTS, Voyager OTS | |
| Cristened by: | Jean Driscoll | |
| Owner: | RCG-Royal Caribbean Group (via RCCL-Royal Caribbean Cruises Ltd) | |
| Operator: | RCI-Royal Caribbean International |
You can see from our list in which ports the cruise ship Mariner of the Seas is expected according to schedule.
| Date | Port | Arrival | Departure |
|---|---|---|---|
| Mar. 17th 2026 Tuesday, 17th of Mar. 2026 | Galveston | 12:00 am | 03:00 pm |
| Mar. 19th 2026 Thursday, 19th of Mar. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Mar. 21st 2026 Saturday, 21st of Mar. 2026 | Galveston | 12:00 am | 03:00 pm |
| Mar. 23rd 2026 Monday, 23rd of Mar. 2026 | Port Costa Maya Mahahual | 11:59 am | 07:00 pm |
| Mar. 24th 2026 Tuesday, 24th of Mar. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Mar. 26th 2026 Thursday, 26th of Mar. 2026 | Galveston | 12:00 am | 03:00 pm |
| Mar. 28th 2026 Saturday, 28th of Mar. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Mar. 30th 2026 Monday, 30th of Mar. 2026 | Galveston | 12:00 am | 03:00 pm |
| Apr. 2nd 2026 Thursday, 2nd of Apr. 2026 | Falmouth | 08:00 am | 06:00 pm |
| Apr. 3rd 2026 Friday, 3rd of Apr. 2026 | George Town | 07:00 am | 04:00 pm |
| Apr. 4th 2026 Saturday, 4th of Apr. 2026 | Cozumel | 10:00 am | 08:00 pm |
| Apr. 5th 2026 Sunday, 5th of Apr. 2026 | Belize | 08:00 am | 05:00 pm |
| Apr. 6th 2026 Monday, 6th of Apr. 2026 | Roatan | 08:00 am | 05:00 pm |
| Apr. 9th 2026 Thursday, 9th of Apr. 2026 | Galveston | 12:00 am | 04:00 pm |
| Apr. 11th 2026 Saturday, 11th of Apr. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Apr. 13th 2026 Monday, 13th of Apr. 2026 | Galveston | 12:00 am | 04:00 pm |
| Apr. 15th 2026 Wednesday, 15th of Apr. 2026 | Port Costa Maya Mahahual | 11:59 am | 07:00 pm |
| Apr. 16th 2026 Thursday, 16th of Apr. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Apr. 18th 2026 Saturday, 18th of Apr. 2026 | Galveston | 12:00 am | 04:00 pm |
| Apr. 20th 2026 Monday, 20th of Apr. 2026 | Port Costa Maya Mahahual | 11:59 am | 07:00 pm |
| Apr. 21st 2026 Tuesday, 21st of Apr. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Apr. 23rd 2026 Thursday, 23rd of Apr. 2026 | Galveston | 12:00 am | 04:00 pm |
| Apr. 25th 2026 Saturday, 25th of Apr. 2026 | Cozumel | 07:00 am | 05:00 pm |
| Apr. 27th 2026 Monday, 27th of Apr. 2026 | Galveston | 12:00 am | 04:00 pm |
| Apr. 29th 2026 Wednesday, 29th of Apr. 2026 | Port Costa Maya Mahahual | 11:59 am | 07:00 pm |
| Apr. 30th 2026 Thursday, 30th of Apr. 2026 | Cozumel | 07:00 am | 05:00 pm |
| May 2nd 2026 Saturday, 2nd of May 2026 | Galveston | 12:00 am | 04:00 pm |
| May 4th 2026 Monday, 4th of May 2026 | Port Costa Maya Mahahual | 11:59 am | 07:00 pm |
| May 5th 2026 Tuesday, 5th of May 2026 | Cozumel | 07:00 am | 05:00 pm |
| May 7th 2026 Thursday, 7th of May 2026 | Galveston | 12:00 am | 04:00 pm |
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