Which IALA buoy color is used to denote a channel’s boundary on the port side?

The IALA buoyage system designates the color red to mark the boundary of a channel on the port side when navigating inland, following the international convention. This means that when a vessel is approaching from the sea toward the shore, the red buoys should be on the port side (left side) of the vessel. This system is crucial for safe navigation, as it provides clear visual cues to help mariners identify the limits of navigable channels, ensuring they stay within safe waters.

In the global IALA system, red is universally recognized for marking the left side of channels as one sails towards port, which aligns with maritime navigation practices. Understanding the purpose and color associations in buoyage is essential for mariners, as it significantly contributes to effective and safe navigation in various waterway environments.