The concept of trust in practicing diving and how every diver deals with the environment they visit.
Marine trust is an ethical principle before it is a law. The honest diver does not need to be reminded of the rules.
That you leave every dive site in a better state, or at least the same state in which you arrived.
What you see underwater is not for everyone but for the environment it belongs to. Do not move it, do not destroy it, and do not take it.
Report pollution sites. Share safety information. Stand with anyone who needs help.
The honest diver’s footprint in the sea is the footprint that is not seen.