Guida
Osezanayama Park is a municipal park located in the northwest of Miyoshi City, Hiroshima Prefecture, along the banks of the Gōno River. The park itself is a small mountain, offering a rich natural environment where seasonal landscapes like spring cherry blossoms and autumn foliage unfold beautifully. With a summit elevation of approximately 202 meters, the observatory provides a breathtaking 360-degree panoramic view of the Miyoshi cityscape. This area is also deeply rooted in history, blending natural beauty with the legacy of the early Edo period.
The name 'Osezanayama' is derived from the history of the area, specifically the placement of Ozeki Masakatsu, a high-ranking official under Fukushima Masanori, during the early Edo period. Later, the Asano clan ruled the region, and with the development of the Bitchu-Miyoshi domain, the 'Hakumokaku' astronomical observatory was established at the summit. The park also preserves cultural traces such as the statue of Akuri-hime (Yosenn-in), the third daughter of Asano Choji, and monuments dedicated to the poet Nakamura Kenkichi, making it a place where history and nature coexist.
The park boasts a diverse range of flora, particularly an abundant variety of cherry blossoms. You can enjoy different species such as Yaezakura (double-flowered), Botan (peony), Shidarezakura (weeping cherry), Higan, and Somei Yoshino, which bloom at slightly different times. Along the southeastern foot by the Gōno River, the 'Ouzu Dote' features a stunning 500-meter stretch of cherry trees. From the summit observatory, you can enjoy a wide view of Miyoshi, and on clear days, the visibility is exceptional. Other significant historical sites include the 80cm-tall Christian stone lantern and the ruins of the former astronomical observatory.
The scenery changes dramatically with the seasons. Spring (April) is the peak for cherry blossoms, especially during the 'Miyoshi Sakura Festival,' and autumn (October/November) brings vibrant foliage. During these seasons, light-up events are often held, offering a unique nocturnal view. Daytime is perfect for walking under the sun, while the evening is an ideal time to watch the sunset over the city from the observatory.
As a large natural park, it is an excellent spot for walking and observing seasonal plants. The path to the summit follows the natural terrain, providing a scenic hike. You can also enjoy a peaceful stroll along the Gōno River's cherry tree-lined path. Exploring the various monuments and statues offers a deep connection to the local culture and history.
Just south of the park lies the 'Iwai Bridge,' the oldest steel bridge in the prefecture, spanning the Gōno River. Additionally, the nearby Hogen-ji Temple is well-known for its connection to the Chushingura (47 Ronin) legend. These sites allow visitors to explore the historical landscape of Miyoshi more deeply.
Since the park is part of a mountain, the terrain includes slopes and uneven paths. We highly recommend wearing comfortable walking shoes. While the park is open 24 hours, please be prepared for changes in lighting if visiting during a light-up event. Admission to the park is free, but please carry cash for any nearby transportation or dining needs.