Boating Coach US
Aids to navigationQuestion 224 of 352

Heading in the Conventional Direction of Buoyage, which buoy marks the left (port) side of a channel?

  1. A green can buoy
  2. A red nun buoy
  3. A red can buoy
  4. A green nun buoy
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Correct answer: A green can buoy

Port hand buoys are green. They are can-shaped or pillar buoys.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 62: United States Aids to Navigation System, § 62.25 Lateral marks

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Questions last reviewed: 18 October 2026