Festa della Castagna takes place north of Rome.
The 2023 chestnut festival takes place at Vallerano, a small town located about 60 km northwest of Rome, over four weekends in October and on 1 November.
The festivities of the 21st edition of the Festa della Castagna are centred around the locally-harvested chestnuts – which can be enjoyed roasted – accompanied by wine, music and dancing.
Festival events take place on the weekends on 14-15, 21-22 and 28-29 October as well as on Wednesday 1 November.
For full programme and details of how to reach Vallerano, which lies about 13 km southeast of Viterbo, see Festa della Castagna website.
source https://www.wantedinrome.com/whatson/roast-chestnut-festival-at-vallerano-near-rome.html