The Royal Ark Mariner Degree is attached to the Mark Degree and is open to all Mark Master Masons.
This beautiful and interesting Degree has no historical connection to the Mark Degree although it is governed by Mark Grand Lodge, and as its name suggests it has a nautical flavour, taking for its scenario the circumstances leading up to the Great Flood as recorded in the book of Genesis and the steps taken by Noah to build the Ark, by which mankind was preserved from perishing in the “Universal Deluge”.
The senior officers of a Royal Ark Mariner Lodge represent Noah and his two sons, Japheth and Shem.
Like the Mark Master Masons Degree, there is only one ceremony of Elevation.
The Royal Ark Mariner Degree has some really beautiful portions of ritual, which are guaranteed to make a lasting impression on every candidate.
| No | Lodge | Meeting Dates | Installation | Meeting Place |
| RM11 | Joppa Lodge | 2nd Sat 5 & 1st Sat 11 | November | Birkenhead |
| RM148 | The Stamford Lodge | 2nd Mon 1, 4, 10 | October | Sale |
| RM196 | Cestrian Lodge | 3rd Wed 2, 4, 11 | November | Christleton |
| RM327 | Sincerity Lodge | 4th Fri 1, 3, 11 | March | Hoylake |
| RM396 | De Tabley Lodge | 3rd Wed 1, 3, 10 | October | Wallasey |
| RM532 | Weaver Lodge | 1st Thurs 5 & 11 | May | Christleton |
| RM597 | Stayley Lodge | 1st Fri 4 & 10, Last Fri 2 | October | Hyde |
| RM622 | Warren de Tabley | 4th Mon 1, 3 & 9 | September | Knutsford |
| RM705 | Claughton Lodge | 3rd Mon 3, 11 | March | Birkenhead |
| RM723 | Four Cardinal Virtues Lodge | 3rd Fri 3 & 3rd Thurs 5, 10 | May | Middlewich |
| RM839 | Cornwall Legh Lodge | 3rd Wed 2, 4, 9 | September | Stockport |
| RM868 | Hyde Lodge | 3rd Fri 1,10 & 3rd Wed 5 | May | Hyde |
| RM922 | Wythenshawe Lodge | 3rd Thurs 2, 4, 10 | February | Sale |
| RM953 | City of Chester Lodge | 2nd Fri 1, 3, 11 | March | Chester |
| RM964 | Commemoration Lodge | 3rd Mon 2, 4, 9 | April | Macclesfield |
| RM1024 | Altrincham Lodge | 4th Fri 3, 5, 10 | May | Macclesfield |
| RM1072 | The Birkenhead Lodge | 2nd Tues 1, 9 & 1st Tues 4 | January | Wallasey |
| RM1090 | Ashlar Lodge | 2nd Tues 1, 3, 11 | March | Christleton |
| RM1107 | Benjamin Addy Lodge | January | Dukinfield | |
| RM1325 | Leverhulme Lodge | 3rd Tues 2, 4, 10 | April | Birkenhead |
| RM1445 | Neston Lodge | 3rd Fri 3, 10 | March | Neston |
| RM1468 | Cheshire Installed Commanders Lodge | 4th Thurs 4, 10 | October | Sandbach |
| RM1522 | Tarporley Lodge | 3rd Thurs 5 & Last Mon 10 | May | Tarporley |
| RM1609 | Sandbach Lodge | 2nd Tues 1, 4th Wed 5, 1st Mon, 9 | January | Sandbach |