When operating a boat or PWC near another vessel or swimming area, to what speed must a boat operator reduce?

When operating a boat or personal watercraft (PWC) near another vessel or a swimming area, it is essential to reduce speed to idle speed. This practice is crucial for several reasons. First, it minimizes the risk of creating large wakes, which can be hazardous to swimmers and other small boats. Large wakes can lead to dangerous situations by upsetting unsteady vessels or even displacing swimmers. Secondly, maintaining idle speed helps ensure that the operator retains full control of the vessel, allowing for better maneuverability in crowded or restricted areas, promoting safety for both the boat operator and others in the vicinity. This regulation is designed to protect life and property on the water, contributing to a safer and more enjoyable experience for everyone involved.

In contrast, full speed would be inappropriate as it increases the risk of accidents, half speed might still generate sizeable wakes, and slow speed does not specify the controlled minimal speed necessary for safety around sensitive areas.