In the centre of the Alpes de Haute-Provence department, Digne-les-bains is the capital and with 17,000 inhabitants the second largest town in the department behind Manosque. Digne is located in the valley of the Bléone, a sometimes torrential tributary of the Durance which has its source in the nearby Trois-Evéchés massif at an altitude of over 2400 metres. Digne is a spa town, the waters of a hot spring - gushing out at more than 50°C - highly mineralised, treat respiratory ailments and rheumatism. The Geological Reserve of the Alpes de Haute-Provence, the largest in Europe, includes the exceptional site of the "ammonite slab". Digne-les-bains is the centre of outdoor activities: hiking, horse riding and mountain biking, cycling, via ferrata and climbing, swimming and canyoning. The "train des Pignes" links Digne to Nice, managed by the "Chemins de fer de Provence" company. The " Corso de la Lavande " takes place on the first weekend of August.