What must a Dive Supervisor evaluate before each dive?

A Dive Supervisor must evaluate environmental conditions before each dive because these factors directly impact the safety and success of the dive operation. Environmental conditions include water temperature, visibility, currents, tides, and potential hazards such as underwater obstacles or marine life. These elements determine whether the diving site is safe for the dive plan as conditions can change rapidly and may present unexpected risks to divers.

By assessing the environmental conditions, the Dive Supervisor can implement necessary precautions, modify dive plans as needed, provide appropriate guidance to divers, and ensure that all safety protocols are followed. This attention to environmental factors is crucial to minimizing risk and maximizing diver safety during the dive.

While aspects like current diving technology, personal fitness levels of divers, and underwater navigation skills are important considerations, they do not take precedence over evaluating conditions that could immediately affect the dive environment and diver safety.