Which side of the boat should display a red light?

In boating, the red light is designated to be displayed on the port side, which is the left side of the vessel when facing forward. This is a standard convention established by maritime navigation rules to help maintain safety and avoid collisions at night or in low visibility conditions.

By having a consistent color scheme for navigation lights—red for the port side and green for the starboard (right) side—other vessels can easily determine the direction a boat is facing and its relative position. Recognizing these lights allows boaters to make informed decisions regarding navigation and avoid potential accidents. Therefore, the correct association of the red light with the port side is crucial for safe boating practices.