What is the purpose of a buoy in maritime navigation?

The purpose of a buoy in maritime navigation is to mark channels, hazards, and provide information to mariners. Buoys serve as visual aids placed on the water to guide vessels through safe passages, indicate the presence of underwater dangers like rocks or shoals, and delineate navigational routes. They come in various colors and shapes, each providing specific information about the navigational rules and the surrounding area.

While there are distinct functions for signaling distress, providing rest, or gathering weather data, these do not encompass the primary role that buoys play in ensuring safe navigation on waterways. Signaling distress is typically handled by other devices such as flags or lights, resting areas for sailors are generally found on shore or designated mooring zones, and weather data is collected through different instruments and systems, rather than buoys specifically designed for navigation purposes.