What does a white buoy with a blue band indicate?

A white buoy with a blue band denotes an anchorage area, which helps mariners identify safe zones where vessels can anchor without obstructing navigation or posing a hazard to other watercraft. These buoys serve as critical guidance for boaters seeking designated places to moor their vessels securely. By recognizing this particular buoy color and marking, sailors can ensure that they are choosing appropriate locations for anchoring and are compliant with maritime regulations and safety practices.

The other options pertain to different navigational aids; for instance, buoys that mark hazards or restricted zones would employ different color schemes to convey their respective messages effectively. Understanding the significance of buoy colors and patterns is essential for safe navigation on the water.