Fiera di a Castagna closes the Corsican fair calendar in Bocognano from 4 to 6 December 2026. The chestnut is a major marker of inland Corsican food heritage, tied to flour, bread, sweets, mountain agriculture and the memory of communities that depended on chestnut groves. Held by Foyer rural U Castagnu in the Moraschi quarter, the fair brings producers, craft, food and local knowledge into one winter gathering. It is one of the clearest cultural entries for the island because the chestnut connects landscape, language, taste and rural history.