If no line is available during a night dive, what should you stay close to?

Staying close to your buddy during a night dive is essential for safety and effective communication. In limited visibility conditions, it can be easy to lose track of one another, and having a partner ensures that support and assistance are readily available. Maintaining proximity to a buddy facilitates mutual monitoring and helps in managing any potential issues that may arise during the dive. In case of an emergency, a buddy can provide immediate help or guidance back to the entry point or the surface.

While it's true that staying close to the dive instructor, your gear, or a light source has its benefits, none of these options offer the same level of direct support as a buddy does. The dive instructor may not always be nearby if you're in a larger group, and having your gear or light source does not provide the immediate personal safety that a diving partner can. A buddy is specifically trained to assist you, making them a crucial element in ensuring a safe and enjoyable night diving experience.