What symbol on regulatory marker is used to mark I no wake or idle speed area?

The symbol used to mark a "no wake" or idle speed area is typically a white circle with a diagonal red stripe or a red circle with a white diagonal stripe. This sign indicates that vessels must operate at a speed that does not create a wake, ensuring safety and protection of the waterway and its surroundings. The specific design may vary by jurisdiction, but the intent remains the same. Always check local regulations for precise markings.