In which situation would a mariner typically find a special buoy?

A special buoy is specifically designed to convey additional information beyond standard navigational aids. Situations where these buoys are placed often include areas with specific regulations or noteworthy features, such as fishing zones, environmental protection areas, or areas where navigational conditions are unusual. This ensures that mariners are aware of specific considerations they must heed in those locations.

For instance, a special buoy may indicate an area where fishing is restricted or highlight a submerged hazard that requires caution. These designated points ensure that sailors can navigate safely while being informed about local rules or significant environmental features. This context is critical, as standard navigation buoys may not provide the additional guidance necessary for safe passage in such scenarios.