Today invitations were sent to shark research team leaders around the world to join a global project to understand shark movements, behaviour and distributions in relation to environmental changes and anthropogenic impacts. Our goal is to build a global community to develop a database that contains all the satellite tracks of pelagic shark movements that have ever been recorded. It is likely to be in the thousands but we won’t know for sure until we start collecting. Like all good shark tracking ideas it came during a hiatus in a tagging trip, as we worked hard sunbathing beside a hotel pool in the Algarve, southern Portugal.