What should divers do if they notice a sudden change in visibility?

If divers notice a sudden change in visibility, it is essential to assess the situation and adjust their dive plan. This approach allows divers to evaluate the new conditions—understanding factors such as the cause of the change in visibility (e.g., sediment disturbance, poor lighting, or changes in current) and potential hazards that may arise from these changes.

By assessing the situation, divers can make informed decisions about their safety. This may involve adjusting their depth, changing the dive site, modifying their air consumption strategy, or preparing to ascend if the visibility greatly diminishes their ability to navigate safely. It’s a proactive way to ensure that divers remain in control of the situation rather than acting impulsively or remaining unaware of the changing environment.

Other choices may not prioritize safety or awareness; for instance, continuing to dive without concern ignores the potential risks associated with poor visibility. Immediately surfacing could be unnecessary if the change is manageable; it might deprive divers of the opportunity to explore safely. Signaling for help without assessing the situation first could create confusion and may not be needed if divers can adapt their plans to remain safe.