The dan buoys marked the safe passage for ships.

The light buoys guided the ships safely through the harbor.

There are several mooring buoys in the harbor.

The anchor buoys were placed strategically to mark the safe navigation route.

The life buoys were thrown into the water to ensure the safety of the swimmers.

The shipwreck survivors were rescued using breeches buoys.

The cable buoys marked the location of the underwater cables.

The conical buoys marked the entrance to the harbor.

The whistling buoys marked the entrance to the harbor.

The nun buoys marked the safe passage for ships.