In Nieul-sur-Mer’s municipal park, the guinguette draws on the older French habit of outdoor sociability: music, informal gathering and a shared public evening. Its link with coastal transhumance gives the event a local note, connecting entertainment with the seasonal movement, memory and community rituals of the coast. The coastal transhumance reference gives the evening a stronger local anchor, tying the park gathering to seasonal movement, animal routes and the social customs of the shoreline.