Up close, it looks like an animal lurking in the sand. Once a place of pilgrimage, the rock of Tombelaine was an English citadel during the Hundred Years’ War, of which only ruins remain. There are many legends about it: the devil is said to be buried there; a young girl by the name of Helen is said to have been seduced and then abandoned there and her voice can be heard on stormy nights. Its varied ecosystem allows many seabirds to nest there in spring. To ensure their tranquillity, the public is asked to avoid visiting the islet during the nesting period, from 15 March to 15 July.