Why is it necessary to have a thorough knowledge of the dive site for night dives?

Having a thorough knowledge of the dive site is essential for night dives primarily because familiarity helps prevent disorientation. At night, visibility is significantly reduced, making it challenging to navigate and maintain situational awareness. Knowing the layout of the dive site, including entry and exit points, potential hazards, and key landmarks, allows divers to orient themselves even in low-light conditions. This understanding can reduce anxiety, boost confidence, and improve overall safety during the dive, as divers are less likely to become lost or disoriented when they know what to expect.

While other factors like social interactions, photography, and travel time may play roles in the diving experience, they do not directly contribute to the core safety and navigation concerns that are paramount during night dives. Thus, knowing the dive site plays a critical role in ensuring a successful and secure night diving experience.