What should divers consider regarding visibility when planning a dive?

When planning a dive, divers should definitely consider light from the surface, as it has a significant impact on visibility underwater. Underwater visibility can decrease due to various factors, including water clarity, particles, and light penetration. Natural light tends to diminish rapidly with depth, and in murky waters or environments with lots of suspended sediment, visibility can become very limited. By being aware of how light from the surface affects visibility, divers can better plan their dive depth and duration to optimize safety and enjoyment.

Factors like the number of divers, surface weather conditions, and current flow, while important to consider for dive safety and planning, do not directly relate to the specific aspect of visibility in the same way that light from the surface does. Understanding how light affects underwater visibility is crucial for making informed decisions about dive conditions and ensuring an enjoyable diving experience.