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.
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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. 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.
| SL | Start line | The start Line: shall be between the mainmast of the committee boat and an Outer Pin-end mark, laid on port-side of the committee boat. Restrictions: An inner-limit mark will be laid close to the committee boat; no boat shall pass between the inner limit buoy and the committee boat. Any boat passing between will be (DSQ) disqualified from the Championship. This inner-limit mark may be in front or behind the start line, OR leeward of the committee boat and does not form part of the start-line. |
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| 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 |
The finish line will be the same line as the start line (unless race is shortened), It will be from the main- mast on the committee boat and a pin-end mark. Inner limit mark must be observed.
START-FINISH LINE & 1st LEG : the start-finish line will be laid downwind of the first mark of the course, providing a beat for the first-leg.
Notification of Courses: Courses will be displayed on the side of the Committee boat before the race- countdown is started. (This changes rule 27.1). The RO may also announce the race-course on the VHF.