Which of the following is critical to discuss before diving in low visibility conditions?

Discussing emergency procedures before diving in low visibility conditions is crucial because these situations can escalate quickly and make diving inherently more dangerous. In reduced visibility, divers cannot rely on visual references, making it difficult to navigate and assess the environment. This increases the likelihood of disorientation and the potential for separation from dive buddies. Knowing the emergency procedures ensures that all divers not only understand how to respond in critical situations but can communicate effectively, work as a team, and enhance safety.

While other factors may seem relevant, such as equipment weight, surface conditions, and dive duration, they do not directly address the immediate risks or challenges posed by low visibility. For example, knowing surface conditions is important for planning dives but does not provide critical guidance in case of emergencies underwater where visibility is compromised. Therefore, prioritizing a thorough review of emergency procedures is essential to ensure a safe diving experience under challenging conditions.