Course scope
Independent revision aid only. It is not an official IALA, RYA, or navigation authority publication, certificate, course, or replacement for practical pilotage judgement.
Compass Revision course
IALA A Buoyage revision
Short visual revision course for IALA Region A buoyage recognition, lateral marks, cardinal marks, topmarks, light rhythms, and mixed drill practice.
Independent revision aid only. It is not an official IALA, RYA, or navigation authority publication, certificate, course, or replacement for practical pilotage judgement.
Syllabus map
What this course covers
IALA A vs B Overview
FreeWhat the buoyage system is, where Region A and Region B differ, and how to avoid mixing the lateral colours.
Preview module
Lateral and Preferred Channel Marks
Region A port, starboard, preferred-channel-to-port, and preferred-channel-to-starboard marks by colour, shape, and pass side.
Preview module
Cardinal Marks and Flash Rhythms
North, east, south, and west cardinal marks with colour bands, topmarks, safe side, and quick-flash rhythm memory.
Preview module
Danger, Safe Water, Special, and Emergency Wreck Marks
Isolated danger, safe water, special marks, and emergency wreck marking with recognition cues and light rhythms.
Preview module
Night Identification and Mixed Drills
Mixed recall for shapes, colours, topmarks, pass side, and flash sequences before using buoyage in pilotage.
Preview module
How to use the guide
Work through each module lesson, test recall with the module quiz, and use the flashcards until the decision checks feel automatic. The content is written for revision and confidence building before formal training, assessment, or official documentation checks.