What does a regulatory buoy typically inform mariners about?

A regulatory buoy is specifically designed to convey critical information to mariners regarding navigation rules. These buoys are usually marked with distinctive colors and shapes to indicate specific regulatory requirements, such as speed limits, no-wake zones, or areas where anchoring is prohibited. By following the information provided by these buoys, mariners can ensure safe navigation and compliance with local regulations.

While other options may involve important information for boaters, they do not pertain specifically to the primary function of regulatory buoys. Weather conditions are typically monitored through weather buoys or forecasts, fishing zones are indicated through designated fishing markers, and nearby landmarks are usually communicated through navigational aids or charts. The unique purpose of regulatory buoys is solely to inform mariners about rules that govern the use of navigable waters. This clarity helps maintain order and safety on the water, reinforcing the importance of understanding and adhering to the information provided by these buoys.