The 八户三社祭 (Hachinohe Sansha Matsuri) is a traditional festival held in Hachinohe City, located in Aomori Prefecture, Japan. Celebrated annually in early August, it features vibrant parades, traditional music, and dance performances. The festival honors three local shrines: Hachinohe Shrine, Kaminokawa Shrine, and Kaminokawa Shrine. During the festival, participants carry ornate floats called yama, showcasing intricate designs and decorations. The event attracts thousands of visitors who come to experience the lively atmosphere and cultural heritage of the region. The festival is an important part of the local community, fostering unity and pride among residents.