What color lights or buoys indicate the port side of a channel?

The correct indication of the port side of a channel is represented by red colors or lights. In maritime navigation, red buoys or lights are used to mark the left side of a channel as a vessel enters from the sea or heads upstream. This system is known as the "Lateral Marking System," which is widely used to assist mariners in safely navigating channels and waterways.

The use of red to signify the port side provides a consistent means of identifying navigation markers and helps prevent confusion while on the water. In contrast, green colors or lights indicate the starboard side, reinforcing the importance of color coding in navigation. Understanding these color designations is crucial for safe boating practices and avoiding accidents on the water.