Which buoy can be used to mark a special anchorage area?

The choice of a yellow buoy lettered B to mark a special anchorage area aligns with established navigation rules and practices. Yellow buoys are specifically designated for marking special anchorage areas, which are designated spots where vessels may anchor that are typically fewer in restrictions and may offer safety and protection.

These buoys help provide clear guidance to mariners, indicating that the marked area serves a particular purpose. They differ from other buoy types, such as green or red buoys, which denote navigational channels or safe water routes and are not suitable for indicating special areas like anchorage zones. The clarity of color coding and lettering helps ensure that mariners can easily identify special areas as they navigate.