The Arcachon Bay is an inland sea made of about fifty miles of urbanized shores. It is a lively landscape that combines environmental, socioeconomic , cultural-and at times contradictory-uses. One common adversary unites all tensions: the black-bellied Brent goose. It has led artists to create a recreational mediation, to highlight all of these various uses and transcend all confrontations. The artistic process encourages one to rethink the connections and the exchanges between inhabitants, tourists and commuters. This creation transfigures the everyday life, thus allowing for all different cultures to meet, and revealing the diversity of this environment. It paves the way to the possibility of a multiple identity and that of acting on the territory. The Arcachon Bay could hence become a public resource, combining a material structure with a mental representation, beyond a mere cohabitation. The recreational mediation that has been suggested contributes to building the story of this territory, favoring intercultural dialogue and mutual understanding. This is how one micro personal experience, that takes the other into account, will help a landscape engage into an interpersonal ecology, that might just move from difference to diversity, from a static entity to a dynamic hybridization and collective enrichment process.