Canadian Boating Exam 2025 – 400 Free Practice Questions to Pass the Exam

A flashing yellow light every four seconds on a buoy signifies an anchorage or information buoy. This means that the buoy is marking the location of a designated area where vessels can safely anchor, or it may contain important information or regulations for boaters in the surrounding area. This option is most likely correct because the other options do not typically have flashing lights on buoys. A swimming area or diving area may be marked by different colored or shaped buoys, and a keep-out area would have a steady red light to indicate danger or obstruction. Additionally, information buoys are often equipped with flashing yellow lights to draw attention to important messages or warnings.