What is the recommended action if you encounter a vessel displaying a "Divers Down" flag?

When you encounter a vessel displaying a "Divers Down" flag, maintaining a distance and navigating cautiously is the recommended action. The "Divers Down" flag, which is typically a rectangular red flag with a white diagonal stripe, signals that there are divers in the water nearby. This flag indicates that the area is designated for diving activities, and it is imperative for other vessels to exercise caution.

By keeping a safe distance, you help ensure the safety of the divers who may be submerged and unable to see or hear your vessel approaching. Navigating cautiously not only protects the divers but also allows you to assess the situation better, avoiding potential hazards. It's essential for all boaters to be with this protocol to promote safety on the water.

Considering the other options, speeding past the flag poses a risk to the divers and could result in serious accidents. Ignoring the flag entirely undermines the safety measures in place for divers, while approaching the flag gradually still does not guarantee the required caution needed when divers are present. Maintaining a safe distance and exercising caution is the best practice in this situation.