Four Winns' New Hull | DIY Lighting | Culinary Command Center! - 8/19/25
⚓US Coast Guard Captain's LicensePractice Question - Answer
D. The east side of the mark
In the IALA cardinal system, marks indicate the direction of safe water relative to the mark. The number of flashes corresponds to the position on a clock face: 3 flashes signify the 3 o'clock position, which is east. Therefore, a cardinal mark with this specific light characteristic indicates that the safest water lies to the east of the mark.
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