
Guide
Hachigata Castle Park, located in Yorii Town, Saitama Prefecture, is a significant site representing the castle fortifications of the Sengoku (Warring States) period. Designated as a National Historic Site in 1932, the area is now a well-maintained public park. The castle was strategically built utilizing the natural defenses of the cliffs formed by the Arakawa and Fukasawa Rivers. Visitors can see reconstructed earthen walls (dorui), moats, stone masonry, and the four-legged gate (shikaku-mon), which provide a vivid visual of ancient construction techniques. The park is also highly regarded for its seasonal beauty and rich natural environment.
The history of Hachigata Castle is said to have begun with the construction by Nagao Kageharu, a vassal of the Yamauchi Uesugi clan. Later, under the rule of the Hojo clan of Odawara, it was expanded and fortified by Hojo Kunimori, becoming a vital strategic stronghold in Northern Kanto. The castle served as a frontline defense against incursions from the Joshu and Shinano regions. During the Siege of Odawara by Toyotomi Hideyoshi in 1590, the castle endured a fierce month-long siege by the forces of Maeda Toshiie and Uesugi Kagekatsu. Ultimately, the castle surrendered to save the lives of its defenders. Since then, it has transitioned through the rule of the Tokugawa clan, standing as a silent witness to pivotal turning points in Japanese history.

The park features various ruins that showcase the structure of a Sengoku-period castle. The most significant areas are the reconstructed 'San-no-kuruwa' (Third Bailey), 'Ni-no-kuruwa' (Second Bailey), and the 'Umadashi' (outpost) areas, which allow visitors to grasp the true scale of the original fortification. In the San-no-kuruwa area, the reconstructed stone-walled embankments, gates, and ponds make it easy to visualize the castle's former appearance. The 'Renkaku' (contiguous) structure leading to the 'Honmaru' (Main Bailey) demonstrates the ingenious use of terrain for defense, offering a precious look into the history of Japanese castle architecture.
Hachigata Castle Park offers a different face to every season. In spring, the highlight is the 'Edohigan' cherry blossoms, a designated natural monument of Yorii Town. These trees, some approximately 150 years old, are known as 'Kunimori-zakura' after the lord Hojo Kunimori. The sight of these blossoms in full bloom attracts many photographers and nature lovers. Spring also brings the appearance of Katakuri (dogtooth violet) flower beds. From summer to autumn, visitors can enjoy the scenic beauty of the Fukasawa River valley and the vibrant colors of the autumn foliage. For the best experience, visit during daylight hours to clearly observe the details of the earthen walls, moats, and reconstructed gates.

The 'Hachigata Castle History Museum' is located within the park, offering detailed exhibits on the history and structural design of the castle. Through these displays, visitors can gain a deeper understanding of the role such fortifications played during the Sengoku period. For those seeking physical activity, walking along the maintained paths allows you to experience the defensive terrain firsthand. Nature observation is another way to enjoy the park, especially through the local flora like Katakuri and Edohigan. A stroll through this fusion of history and nature is a highly rewarding experience for travelers interested in Japanese culture.
The surrounding area retains the atmosphere of an old castle town, with historical alleyway names such as 'Tonohara-koji' and 'Kaji-koji'. Nearby, Joryuji Temple houses historical relics, including Gorinto (five-ringed towers) and Hogyoin-to (pagodas) moved from the castle site. The area along the Fukasawa River valley is also excellent for leisurely walks. You can combine a visit to the castle with other historical spots in Yorii to create a comprehensive sightseeing itinerary.
The park covers a wide area with uneven terrain, including earthen embankments and unpaved slopes, so comfortable walking shoes are highly recommended.