Which factor is crucial for ensuring safety during deep dives?

Having a dive plan and buddy system is crucial for ensuring safety during deep dives because it establishes clear guidelines and protocols for the dive, which can be critical in managing risks associated with deep diving activities. A dive plan outlines the depth, time, route, and emergency procedures, allowing both divers to prepare for the unique challenges that deep dives present, such as increased pressure, impaired visibility, or unexpected currents.

A buddy system enhances safety as divers are paired up, allowing them to monitor each other and provide assistance if one diver encounters difficulties. This mutual vigilance is essential, especially at greater depths, where the risk of decompression sickness or other complications increases.

Thus, having a comprehensive dive plan and relying on a buddy system effectively fosters a safer diving environment, ensuring that divers are equipped and prepared to handle emergencies, reducing the likelihood of accidents.