Tucked high in the forested peaks of Wakayama Prefecture lies Koya-san (Mount Koya)—a mystical, sacred mountaintop retreat that offers a rare glimpse into Japan’s spiritual heart. As the headquarters of Shingon Buddhism, Koya-san is home to over 100 temples, serene cemeteries, and centuries-old traditions. This guide covers everything you need to know about visiting Koya-san, …







