Not primarily used to assist in navigation, special buoys indicate special areas or features such as military exercise zones, recreation zones, traffic separators etc. They're the same in both IALA buoyage systems and are characterised by their yellow colour. Their lights, when they have them, are yellow and can have any rhythm apart from those used by isolated danger, cardinal, safe water, lateral and emergency wreck buoys.
- Colour
- Yellow
- Shapes
- Conical, Spar, Cylindrical, Pillar, Spherical
- Top Marks
- Yellow Cross on it's side
- Lights
- If a light is fitted the colour will be Yellow. Any rhythm apart from those used by isolated danger, cardinal, safe water, lateral and emergency wreck buoys
- Chart Symbol