In terms of diving, what could potentially reduce a diver's visibility in caves?

The presence of sediment disturbance is a significant factor that can reduce a diver's visibility in caves. In underwater environments, particularly in cave systems where the water may be still, any movement of the bottom surfaces or surrounding structures can stir up sediment. This disturbance can create a cloud of particulate matter in the water, which significantly scatters light and hinders visibility. As divers move or encounter obstacles, the sediment can become suspended in the water column, leading to a decreased ability to see nearby features or navigate effectively.

Clear water, while generally promoting good visibility, does not directly cause a reduction in visibility. The presence of light can actually enhance visibility, allowing divers to see more clearly. Similarly, calm water usually contributes to better visibility since there is less wave action to disturb sediments. Thus, understanding the dynamics of sediment disturbance is crucial for divers in cavern environments where visibility can quickly be compromised by such conditions.