While there is a growing understanding of the importance of marine ecosystems for society (Selig et al., 2019), evidence shows that pressures from human activities on these ecosystems are increasing Lotze et al., 2018), putting the health of marine ecosystems at risk worldwide . In particular, Sustainable Blue Economy ambitions are becoming an important component of national socio-economic development strategies (e.g., this is called Blue Growth in Europe; Eikeset et al., 2018). This can result in increasing pressures on marine and coastal ecosystems if this development is not designed and implemented with care. Thus, despite current regulatory framework across the globe (illustrated inter alia by the Oceans Act in the USA or Canada and the Marine Strategy Framework Directive in Europe; Borja et al., 2008), it is likely that this challenging situation will continue into the future (Golden et al., 2017).All citizens are directly or indirectly connected to the marine environment. Ensuring that everyone gains a better understanding of the importance of the oceans, the human-ocean interactions, and opportunities to act sustainably and reduce human impacts on marine ecosystem is central to global Ocean Literacy (Santoro et al., 2017).