The ASLO meeting 2021 ( was held in virtual form from 22 to 27 June 2021. Following the pressing needs of society to ensure a sustainable future, amidst human-influenced environmental changes, the theme of the meeting is Aquatic Sciences for a Sustainable Future: Nurturing Cooperation. The ENDURUNS contribution was presented in the Special Session entitled: “Coastal Ocean Observing Systems to understand and predict changes of the coastal ocean” led by the JERICO-RI coordination team. The ENDURUNS presentation was intended to establish a link between the coastal observation systems and the deep-sea ENDURUNS observing system.