When is the phrase "Red Right Returning" applicable?

The phrase "Red Right Returning" is specifically applicable when entering a harbor from the sea. It is a navigational guideline for boaters that helps to ensure safe passage through channels and confined waterways, particularly in North America.

When approaching a harbor from the open sea, navigators must keep the red buoys on their right-hand side. This rule ensures that mariners are following the correct route into port or harbor, aligning with the standard navigational practices established for maritime travel. The concept is derived from the markings seen on buoys, where red buoys denote the edge of the navigable channel.

Additionally, this rule does not pertain to heading from a river to open waters, navigating upstream from open water, or approaching a dock, as these situations do not require the same adherence to buoy color guidance. Only the context of entering a harbor directly applies this important rule, emphasizing the critical nature of maritime navigation and safety.