The basic rules that every diver must memorize and apply on every dive without exception.
Safety in diving is not optional. It is the difference between an enjoyable sport that lasts for years and an unfortunate accident.
This rule is absolute, with no exception. The dive buddy is not just a companion but your first line of defense in any emergency.
Plan the dive with your buddy, set depths, times, and signals, and follow the plan even if everything seems fine.
Each level of diving allows you certain dives, and exceeding those limits without appropriate training is a real danger.
Inspect your equipment before every dive, even if you are diving in the same place with the same gear, because the problem always happens when you think it will not.
Tension and panic consume oxygen at double speed. Stop, take a breath, think, then act.
There is no shame in saying no, I cannot do this dive today. Social pressure is not worth risking your life.
The safe diver enjoys years of pleasure underwater. The rules exist to protect you, not to restrict you.