What is the primary function of a river buoy?

The primary function of a river buoy is to indicate channels and hazards in rivers and estuaries. River buoys are essential navigational aids that help vessels safely navigate through potentially dangerous or congested waters. They are strategically placed to mark the safe routes that boats should follow and to point out hazards such as submerged rocks, shallow areas, or other obstructions that could pose risks to navigation.

These buoys may include various types of markings, colors, and shapes, each conveying specific information to mariners about which way to steer and where potential dangers are located. By providing clear visual cues, they play a critical role in promoting safe navigation, especially in areas where visibility can be limited or where the underwater topography is complex.

While the other options touch on relevant functions, such as leisure information or fishing activities, they do not capture the primary navigational purpose that river buoys serve, which is vital for the safety of all waterway users.