The Mogami River Boat Festival is an annual event held in Yamagata Prefecture, Japan, celebrating the region's rich cultural heritage. It typically takes place in early August and features traditional boat races along the scenic Mogami River. Participants often dress in colorful costumes, showcasing local traditions and craftsmanship. During the festival, visitors can enjoy various activities, including food stalls, live performances, and fireworks. The event attracts both locals and tourists, providing a vibrant atmosphere filled with music and dance. The Mogami River serves as a beautiful backdrop, enhancing the festive spirit of this unique celebration.