Visibility
using a buddy line in low visibility
When diving in low visibility, stay close to your buddy by holding hands or a buddy line.
Diving In Low Visibility
Divers in limited visibility must be careful to avoid losing each other, navigating off-course, and running into hazards such as sharp objects and fishing line. Diving in these conditions requires special skills and should not be attempted without proper training.

To avoid losing each other, buddies can either hold hands or hold onto opposite ends of a length of rope called a buddy line. Carrying lights is also beneficial because they make you more visible to other divers.

In extremely low visibility you may experience disorientation and lose your sense of where you are or which way is up. If you must dive in extremely low visibility, the best prevention against disorientation is to dive near vertical references such as an ascent line.