[Extract from Executive Summary] Ocean Literacy (OL), or Ocean Citizenship, is the basis of a movement to sway positive, lasting change in communities that will benefit the sea, coast and climate. An ocean literate person is understanding of the ocean’s influence on their own lives, as well as the way that their behaviours influence the ocean and is knowledgeable concerning ocean threats. A degree of informed-ness (or ‘literacy’) is thought to inspire effective communication and allow for impactful decision-making regarding personal lifestyle and behaviours, which are subsequently beneficial to the marine and coastal environment. Not only that, a collective OL mindset may be translated into policy, informing marine spatial planning authorities of people’s expectations regarding their marine and coastal spaces.