Roasted chestnuts are set out for participants of the Chestnut Festival to try in Miwa Town, Japan, Oct. 18, 2019. The Miwa Town Chestnut Festival is held every year to symbolize the end of the chestnut harvest. - Roasted chestnuts are set out for participants of the Chestnut Festival to try in Miwa Town, Japan, Oct. 18, 2019. The Miwa Town Chestnut Festival is held every year to symbolize the end of the chestnut harvest.