As well as being a central component of Swansea University’s corporate brand, waves capture the imagination. They are simultaneously: a beautiful piece of mathematics; realised throughout physics; endemic in communication technologies; and in their sea wave incarnation, shape the biotic and abiotic components of our ephemeral coastlines. Swansea’s epic tides are a manifestation of the world’s biggest wave, which circumnavigates the globe as it chases the moon. Cultures build up around waves; in folk memories of the natural hazards they can pose to the sporting and fishing rituals of coastal communities.