The Hanamaki Castle Ruins are located in Hanamaki City, Iwate Prefecture, Japan. These ruins are remnants of a castle built in the late 16th century by the Nanbu clan. The site offers a glimpse into Japan's feudal past and features stone walls and earthworks that outline the castle's original layout. Visitors to the ruins can enjoy scenic views of the surrounding area, including the Kitakami River. The site is also a popular spot for cherry blossom viewing in spring, attracting both locals and tourists. Today, the Hanamaki Castle Ruins serve as a historical landmark and a peaceful park for relaxation.