Koya is a small, mountainous island located in the Kii Peninsula of Japan. It is known for its rich spiritual heritage and is home to the famous Koyasan, a significant center of Shingon Buddhism. The island features numerous temples, including the grand Okunoin, which is the resting place of Kōbō Daishi, the founder of Shingon Buddhism. The island is also recognized for its stunning natural beauty, with lush forests and scenic hiking trails. Visitors can experience traditional Japanese culture through temple stays and local cuisine. Koya attracts both pilgrims and tourists seeking tranquility and spiritual growth.