Bearings in . Variation 1.2° W at 53° 21.27′ N 006° 07.95′ W on 1 July 2026, from the World Magnetic Model (WMM-2025): magnetic is true plus 1.2°. Bearings are computed from the marks' positions, so are true; magnetic is worked from the unrounded true bearing.
| Course | Marks |
|---|---|
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | |
| 23 | |
| 24 |
All marks are rounding marks except those in a box, which are passing marks. Red marks are rounded or passed to port, green to starboard. The number to the right of a course is the length in nautical miles the club prints for it, which allows for beating and for the legs to and from marks the card cannot place — not the sum of the legs below. Select a course to draw it on the chart: its legs are numbered in sailing order, a leg sailed again is drawn beside the first, and a ring shows the side each mark is left on.
| Name | Shape | Colour | Position | |
|---|---|---|---|---|
| BI | Bull Island | 53° 21.10′ N 006° 08.80′ W | ||
| CH | Churn | One of the club's harbour marks, west of the Bull Wall: the club's instructions list it under Harbour Marks (EC-BKC sailing instructions 12.1) and publish no position for it, and Dublin Port's notice declares only the six North Dublin Bay marks. | ||
| CW | Causeway | 53° 21.50′ N 006° 08.40′ W | ||
| DR | Drumleck | 53° 21.40′ N 006° 07.00′ W | ||
| H | Hub | One of the club's harbour marks, west of the Bull Wall: the club's instructions list it under Harbour Marks (EC-BKC sailing instructions 12.1) and publish no position for it, and Dublin Port's notice declares only the six North Dublin Bay marks. | ||
| IN | Inner | 53° 20.80′ N 006° 08.20′ W | ||
| NB | North Bank | One of the club's harbour marks, west of the Bull Wall: the club's instructions list it under Harbour Marks (EC-BKC sailing instructions 12.1) and publish no position for it, and Dublin Port's notice declares only the six North Dublin Bay marks. | ||
| O | Outer | 53° 21.00′ N 006° 07.50′ W | ||
| S | Spit | One of the club's harbour marks, west of the Bull Wall: the club's instructions list it under Harbour Marks (EC-BKC sailing instructions 12.1) and publish no position for it, and Dublin Port's notice declares only the six North Dublin Bay marks. | ||
| SUT | Sutton | 53° 21.80′ N 006° 07.80′ W | ||
| SW | South West | One of the club's harbour marks, west of the Bull Wall: the club's instructions list it under Harbour Marks (EC-BKC sailing instructions 12.1) and publish no position for it, and Dublin Port's notice declares only the six North Dublin Bay marks. | ||
| V | Vernon | One of the club's harbour marks, west of the Bull Wall: the club's instructions list it under Harbour Marks (EC-BKC sailing instructions 12.1) and publish no position for it, and Dublin Port's notice declares only the six North Dublin Bay marks. |
| from \ to | BI | CW | DR | IN | O | SUT |
|---|---|---|---|---|---|---|
| BI | 032031 | 076074 | 131130 | 099097 | 042040 | |
| CW | 212211 | 098097 | 172170 | 134133 | 051050 | |
| DR | 256254 | 278277 | 231230 | 218217 | 311310 | |
| IN | 311310 | 352350 | 051050 | 066064 | 015013 | |
| O | 279277 | 314313 | 038037 | 246244 | 349347 | |
| SUT | 222220 | 231230 | 131130 | 195193 | 169167 |
| from \ to | BI | CW | DR | IN | O | SUT |
|---|---|---|---|---|---|---|
| BI | 0.47 | 1.12 | 0.47 | 0.78 | 0.92 | |
| CW | 0.47 | 0.84 | 0.71 | 0.73 | 0.47 | |
| DR | 1.12 | 0.84 | 0.94 | 0.50 | 0.62 | |
| IN | 0.47 | 0.71 | 0.94 | 0.46 | 1.03 | |
| O | 0.78 | 0.73 | 0.50 | 0.46 | 0.82 | |
| SUT | 0.92 | 0.47 | 0.62 | 1.03 | 0.82 |
Course 1: NW+W+SW, Short (4).
Course 2: NW+W+SW, Long (6).
Course 3: NE+E+SE, Short (4).
Course 4: NE+E+SE, Long (6).
Course 5: West, Short (5.5).
Course 6: West, Long (7.5).
Course 7: South West, Short (6).
Course 8: South West, Long (7.5).
Course 9: South, Short (6).
Course 10: South, Long (7).
Course 11: South East, Short (6).
Course 12: South East, Long (7).
Course 13: East, Short (6.5).
Course 14: East, Long (7.5).
Course 15: North East, Short (6).
Course 16: North East, Long (7).
Course 17: North, Short (5.5).
Course 18: North, Long (7).
Course 19: North West, Short (5.5).
Course 20: North West, Long (8).
Course 21: West (inner), Short (3.3).
Course 22: South (inner), Short (2.5).
Course 23: East (inner), Short (1.3).
Course 24: North (inner), Short (2.6).