Which of the following is a safety measure for night diving?

Establishing a diving rhythm with your buddy is essential for safety during night dives. When visibility is limited, communication and coordination become critical components of a successful dive. Having a predetermined diving rhythm allows divers to stay together, maintain situational awareness, and respond effectively to any issues that may arise. This fosters a sense of security and teamwork, enabling divers to enjoy the experience while also keeping one another safe.

The other choices emphasize approaches that can introduce unnecessary risk. Diving alone, for instance, severely limits the immediate support one can receive in case of an emergency. Although using technology is valuable, it may not completely eliminate all hazards; divers should still be prepared for unforeseen situations. Furthermore, reducing the time spent underwater doesn’t address the core issues of safety and awareness; rather, it may lead to hurried decisions and missed opportunities for caution and observation during the dive.