Yes, there are many festivals and events held in Koyasan throughout the year. Some of the most popular events are the Koyasan Daimonji Festival, the Koyasan Reiho Festival, the Koyasan Shukubo Festival, and the Koyasan Night Festival. Additionally, there are a number of cultural events and activities that are held in Koyasan throughout the year, such as the Koyasan Obon Festival, the Koyasan Chojukai, and the Koyasan Monzen-Machi.