Fully-Bloomed Cherry Blossoms At Kumagaya Arakawa Ryokuchi Park In Kumagaya,Saitama,Japan. Kumagaya Arakawa Ryokuchi Park,Also Known As Kumagaya Sakura Tsutsumi In Kumagaya,Saitama Prefecture,Japan Is Famous For Its Cherry Blossoms And Is Considered One Of Japan’S Top 100 Cherry Blossom Spots. Kumagaya Arakawa Ryokuchi Park Features A 2Km Long Cherry Blossom Tunnel.