INT 1 · Q 82
Beacon with topmark
Buoys & beaconsCore
A pole fixed to the seabed or shore carries a charted topmark.
What it means
An upright fixed-mark line on a base, topped by the charted daymark, identifies a beacon with a topmark.
Why it matters
A beacon may stand on the hazard it marks. Identify its complete colour and topmark pattern before choosing the side to pass.