Spreading atop a small hill in the center of Nobeoka City, this historical park preserves the memories of a once-famous castle. Step inside and you'll find yourself in another world, enveloped in silence and greenery. The park's highlight is the "Thousand-Kill Stone Wall," built by Takahashi Mototane, the first lord of the Nobeoka domain. This 19-meter-tall stone wall, true to its name, is said to have the potential to collapse with the removal of a single foundation stone, defeating a thousand enemies. Standing before it, you'll be awed by the sheer technological prowess of the time. Known as one of Japan's three major camellia trees, the park boasts approximately 3,300 colorful camellias, including some with horticultural value, blooming from winter to spring. In spring, approximately 300 cherry blossoms adorn the stone walls, which are illuminated at night for a truly magical nighttime view. The "Joyama Bell," standing on the site of the castle tower, has continued to chime the time in Nobeoka for over 100 years since 1878. From the remains of the castle tower, you can enjoy a panoramic view of the beautiful cityscape of Nobeoka, with the Gokase River flowing leisurely along the river.