Spring Azure Butterfly — Cévennes

Each April and May, the garrigue limestone hillsides of the Cévennes National Park in the southern Massif Central of France host one of Western Europe's most spectacular spring butterfly displays as Adonis blue, chalkhill blue, sooty copper, and the rare Provençal short-tailed blue emerge simultaneously on the warm south-facing slopes, their vivid metallic blue and orange wings covering the thyme and horseshoe vetch with a moving shimmer of colour on warm May mornings. The Cévennes holds the greatest butterfly diversity of any French national park — over 130 species have been recorded — and the limestone garrigue habitat that produces this richness also blooms simultaneously with wild lavender, rock roses, and orchids creating a combined botanical and entomological display of extraordinary Mediterranean richness in a northern inland setting. Walking the Cévennes' granite ridges and limestone causse plateaux in May, with griffon vultures soaring above and the hillsides below moving with butterfly wings, creates a French wilderness experience of considerable power. The nearby Causses — the great limestone plateaux of the Larzac, Méjean, and Noir — add further butterfly-rich habitats and some of France's most dramatic upland landscapes. The Cévennes is the only French national park inhabited since prehistoric times, adding ancient terrace agriculture, silk-moth culture, and Huguenot history to the natural spectacle.