France boasts 5 500 km of coastline. The coastal region offers great biological richness and a variety of ecosystems shaped by the sea, the wind and the tide. The seabirds have elected residence in the cliffs. Convenient for nesting and reproducing, it offers a variety of food from the sea and the beaches. Relations between the co-lodgers are sometimes strained, even aggressive. But there is also the silent world of the sea and its inhabitants, many of them ending up unwillingly as food supply for the cliff lodgers.