
Guide
Yukkyuyama Park (locally known as 'Oyama') is a historic urban park located in Nagaoka City, Niigata Prefecture. Situated at the foot of the Higashiyama mountain range, this park serves as a beloved community space where lush nature and historical remains coexist. The grounds feature expansive open lawns, the scenic Suisui Pond and Hyotan Pond, and seasonal gardens such as the iris garden and cherry blossom groves. It is a versatile destination suitable for everyone, from those seeking a quiet nature stroll to families looking for fun at the small zoo or playground.
The park's origins date back to 1917, following a plan to celebrate the 300th anniversary of the Nagaoka opening. It was developed through the contributions of local citizens and the preservation of the Awashiba Shrine site. Since its official opening in 1919, the park has grown alongside the history of Nagaoka. It serves as a vital cultural hub, housing numerous stone monuments related to the Nagaoka Clan and significant historical figures. In recent years, the park has embraced modernization, integrating digital technology like AR (Augmented Reality) to preserve and share its traditional heritage with a new generation.

There are many diverse attractions to enjoy within the park. The most famous is the 'Senbon Sakura' (1,000 Cherry Blossoms) that line the paths in spring, drawing visitors from far and wide. The serene waters of Suisui Pond and Hyotan Pond offer a beautiful backdrop for relaxation. For those interested in culture, the park offers a unique way to learn history: by using a smartphone, visitors can access AR-based explanations of the stone monuments, bringing the historical-background to life through visual and auditory guides. For families, the small zoo—where you can observe Japanese macaques and even crested ibises—and the playground with swings and large slides provide endless entertainment.
The park's beauty changes with every season. Spring (March–April) is the most spectacular time, as the 1,000 cherry trees turn the entire park a soft pink. Early summer (May–June) brings the vibrant colors of the iris garden near the water. In autumn, the foliage turns brilliant colors against the backdrop of the Higashiyama mountains, while winter offers a peaceful, quiet atmosphere for a snowy stroll. For the best experience, visit during daylight hours for picnics, though the reflection of the setting sun on the ponds is particularly beautiful in the late afternoon.

Visitors can enjoy various activities in this vast natural setting. The large open areas are perfect for relaxing picnics. The park also features six traditional 'Kamado' (cooking hearths), which can be used for traditional cooking if prior permission is obtained (note: standard BBQ equipment is generally not allowed without specific approval). A highly recommended way to explore is the 'Smartphone History Tour,' using AR technology to turn a simple walk into an immersive educational experience. Children will also love spending time at the small zoo, observing the local wildlife up close.
The area surrounding the park is rich with cultural sites. The Nagaoka City Local History Museum, a building shaped like a traditional castle, is a great place to deepen your understanding of the region. Nearby, the Yukkyuyama Baseball Stadium and other sports facilities make this a hub for both relaxation and active recreation.
To ensure a comfortable visit, please note the following: