What type of visibility challenges might cavern divers face?

Cavern divers often encounter reduced visibility due to silt or debris being stirred up during their movements in the water. This is especially prominent in confined spaces where the water is often shallow and there can be an accumulation of sediment. Such conditions can significantly impair a diver's ability to see both their surroundings and fellow divers, which is critical for safety.

In cavern diving, the environment can include narrow passages and water that has been disturbed, leading to conditions where visibility is poor. Even minor movements can kick up silt, further complicating navigation and orientation within the cavern. Therefore, being prepared for and aware of the potential for reduced visibility is essential for any diver operating in such environments.

As for other visibility conditions, high visibility due to sunlight would be more applicable in open water scenarios rather than within a cavern where light penetration is limited. Consistent clear visibility is not realistic in cavern settings, and visibility restricted to the entry point does not encompass the often variable conditions divers experience away from those areas.