What does high turbidity lead to in diving?

High turbidity in water refers to the presence of suspended particles, such as sediments, algae, or other organic materials, which can drastically reduce visibility underwater. In conditions of high turbidity, light is scattered and absorbed, leading to a significant decrease in how far a diver can see.

This impaired visibility can cause divers to misjudge distances, making it harder to accurately assess depth. Therefore, high turbidity can lead to over and underestimation of depth because divers may not be able to discern clear reference points underwater. This lack of accurate perception can pose risks, such as ascending or descending too rapidly, which can lead to accidents or lack of situational awareness.

Overall, high turbidity negatively impacts divers' ability to gauge their environment reliably, including estimating how deep they are. The other options provided—such as improved visibility, enhanced color perception, and increased marine life visibility—are all outcomes that can actually diminish as turbidity increases, further emphasizing why the chosen answer is accurate.