What does a yellow buoy indicate?

A yellow buoy serves as a key visual marker on waterways, indicating caution. It is often used to signify areas that may pose hazards or require special boating regulations. This could include zones with submerged objects, shallow waters, or areas with wildlife protection measures. Boaters should approach these buoys with care, as they may encounter specific rules that govern their behavior in these regions, enhancing safety for all waterway users.

The other potential options do not accurately reflect the specific function of a yellow buoy. For example, swim areas are typically marked with different colors, such as red or white. Fishing areas are indicated by buoys with different designs or colors, not yellow. Speed limit zones are also marked differently than caution buoys. Recognizing the significance of yellow buoys is essential for safe navigation and compliance with local regulations.