Reef etiquette in 1975: GBR Marine Park

Reef etiquette and local marine parks set where fins may go. Coastguard flags and shop briefings beat blog visibility claims. Charter fleets and shore entries differ by bay — ask the desk that day. Reef etiquette mapped for mechanisms, locale notes and limits. Reef etiquette sits in the snorkel atlas — mechanisms, locale notes and limits, not slogans.

Adoption and meaning follow coastal and inland water sites as much as peak specs. coastguard and training-agency norms. Not a certifying agency, medical advice, or dive briefing. Editorial scores help browsing; they are not certificates. Links, glossary and adjacent themes around Reef etiquette.

Same atlas neighbourhood as Reef etiquette (snorkel). Route, season or institution that sets access. Safe operating band — speed, depth, load or dose. Skill carry-over across domains; usually limited. Figures valid only inside a dated window. Country/language notes that must not stay English under a local URL.