When entering a channel from seaward, how are the numbers on buoys marked?

When entering a channel from seaward, buoys are designed to help mariners navigate safely and effectively. The correct choice indicates that the numbers on buoys increase with even numbers to starboard. This system is part of the IALA (International Association of Lighthouse Authorities) buoyage system, which is standardized to create consistency for mariners around the world.

This numbering convention provides a clear method for boaters to determine their position within a channel. As they navigate towards the harbor or upstream, approaching vessels will always see the port hand (red) buoys labeled with odd numbers on their left side and the starboard hand (green) buoys labeled with even numbers on their right side. This system not only aids with navigation but also helps to mark the safe side of the channel, which is crucial in busy or unfamiliar waters.

This method not only enhances safety but also simplifies communication among mariners who recognize that these markers follow a predictable pattern as they travel deeper into the channel.