Komoro Castle Park

Stroll the grounds where Komoro’s most powerful clans ruled

Komoro Castle, located in the city of Komoro in Nagano Prefecture, japan, holds a significant historical and cultural value. For over 300 years, it served as the seat of power for the region’s most powerful clans. Today, the castle site has been transformed into a stately park, offering visitors the opportunity to explore its rich history and enjoy the picturesque surroundings.

How to Get There

To reach Komoro Castle, one can take the Shinano Line from either Karuizawa or Nagano. The journey from Karuizawa takes approximately 24 minutes, while from Nagano, it takes around 60 minutes. Upon arrival at Komoro Station, the park is just a short three-minute walk away. The convenience of public transportation makes it easily accessible for both local and international visitors.

Walk where beauty and history merge

Komoro Castle holds a significant place in Japanese history, dating back to the 15th century. Unlike most Japanese castles that were built on hilltops, Komoro Castle was strategically situated in a depression, surrounded by cliffs, a steep valley, and the Chikuma River. This unique location provided natural protection and added to the castle’s defensive capabilities.

Although the castle was abandoned and gradually dismantled after the Meiji Reformation in the late 1800s, several important features of the original structure still remain. The stone foundation, dating back to the castle’s early days, serves as a reminder of its grandeur. The historic Sannomon gate, which served as the main entrance to the castle, was constructed in the mid-1700s and stands as a testament to the castle’s architectural beauty.

Famous cherry blossom-viewing and maple-leaf-viewing spots

One of the highlights of Komoro Castle Park is its picturesque grounds, which attract visitors from near and far. During the spring season, the park transforms into one of Nagano’s most famous cherry blossom-viewing spots. The cherry trees, some of which are hundreds of years old, bloom in vibrant colors, creating a stunning display of natural beauty. Visitors can take leisurely walks through the park, enjoying the sight of cherry blossoms in full bloom.

In the fall, the park hosts the Autumn Leaves Festival, showcasing the vibrant hues of its Japanese maple trees. As the leaves change color, the park becomes a riot of red, orange, and gold, creating a mesmerizing landscape. This festival is a favorite among locals and tourists alike, who come to witness the breathtaking beauty of the changing seasons.

The Otemon gate

The Otemon gate, the oldest extant part of Komoro Castle, is a must-visit attraction. Constructed in the early 1600s, it serves as a testament to the castle’s rich history and architectural prowess. The gate can be found at Otemon Park, located on the opposite side of the station. Visitors can explore this historic structure and immerse themselves in the castle’s past.

While in Komoro, visitors should not miss the opportunity to visit the nearby Nunobiki Kannon Temple. Perched on a cliffside, the temple offers stunning views over the town and towards Mt. Asama, a nearby volcanic mountain. The temple provides a serene and peaceful atmosphere, allowing visitors to reflect and appreciate the natural beauty of the surroundings.

Recommended for You

For those looking to explore more of Nagano Prefecture, two nearby attractions come highly recommended. Karuizawa, a popular resort town located on the Shinano Line, offers a range of outdoor activities and opportunities for relaxation. Visitors can enjoy hiking, golfing, shopping, and dining in this picturesque setting.

Another recommended destination is Mt. Asama, a volcanic mountain known for its scenic beauty and hot springs. Located near Komoro, Mt. Asama offers hiking trails, ski resorts, and the opportunity to witness the power and beauty of nature up close.


Komoro Castle Park is not only a historical site but also a place of natural beauty and tranquility. Its rich history, stunning surroundings, and cultural significance make it a must-visit destination for those interested in Japanese history and culture. Whether it’s strolling through the cherry blossom-filled grounds in spring or witnessing the vibrant autumn foliage, Komoro Castle Park offers a unique and memorable experience for visitors.

Address And Maps Location:

Tei 311, Komoro-shi, Nagano-ken

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