What color is a port side buoy when returning from sea?

In maritime navigation, buoys are a critical part of the Aids to Navigation system, helping vessels determine safe passages and avoid hazards. When returning from sea, the color of a port side buoy is red. This is part of the IALA (International Association of Lighthouse Authorities) buoyage system, which designates colors and light patterns for navigational aids.

The red color for port side buoys is a standard convention that helps mariners identify their position in relation to safe navigation channels, particularly in areas where there might be both commercial shipping and recreational boating traffic. The mnemonic "Red Right Returning" reinforces this guideline, meaning that when a vessel is heading back to the harbor from the open sea, the red buoys should be kept on the right side of the vessel. This visual cue aids in preventing navigational errors as mariners navigate the channel.

In this case, the answer you have is correct, as the red buoy indicates the port side when navigating back toward shore, enhancing the safety and efficiency of maritime travel.