Guide
Oishi Kogen is a prefectural natural park located in Wakayama Prefecture. It is characterized by its vast silver grass (susuki) fields surrounding the summit, making it one of the largest of its kind in the Kansai region. From the top, you can enjoy a magnificent view of Shikoku, Awaji Island, and Mt. Goman. It is a highly popular destination for hiking, camping, and nature walks.
To maintain this expansive silver grass ecosystem, local municipalities and NPOs conduct regular conservation activities. A significant cultural highlight is the traditional "Yamayaki" (mountain burning) held around mid-March every year. This practice is vital for preserving the grassland ecosystem and is a beautiful sign of spring's arrival. Additionally, the area is home to the Miroku Benzaiten Shrine, which features a massive Katsura tree estimated to be 500 years old and is designated as a prefectural natural monument.
The greatest draw is the silver grass field, which changes its expression with the seasons. In autumn, the landscape transforms into a shimmering sea of golden grass, offering a truly breathtaking sight. The panoramic view from the summit is also a major highlight; on clear days, you can see the silhouettes of Shikoku and Awaji Island in the distance, providing a profound sense of openness.
You can enjoy different charms depending on when you visit. Autumn (around September to October) is the best season to see the silver grass glowing in golden hues. In mid-March, you can witness the traditional mountain burning, a unique way to experience the natural cycle. While daytime is great for sightseeing, please be mindful of weather changes if you plan to hike.
The area is perfect for outdoor activities such as hiking, trekking, and camping. There are multiple routes ranging from beginner-friendly paths to more challenging trails for serious hikers. Camping is also a popular way to spend a quiet, rejuvenating time surrounded by nature.
The surrounding area features several spots to enjoy nature, such as the rocky formations of Aoi no Iwa, the historic Zao Bridge, and the Toi Campground. Exploring the Kinomi area allows for a deeper understanding of the natural and cultural heritage of Wakayama.
Cash is required for most facilities near the summit and for bus fares. Credit cards and electronic money are generally not accepted, so please ensure you carry enough cash.
English signage and information may be limited within the natural park. It is recommended to check details in advance before your visit.
No advanced reservation is required for hiking or walking. However, if you plan to use the camping facilities, please check the official information in advance.
When hiking or climbing, wear comfortable walking shoes and active clothing. Prepare for seasonal changes by bringing warm layers, plenty of water, and any necessary gear for rain.
Photography is permitted and encouraged to capture the scenery. However, please be mindful of the environment and avoid disturbing the plants or the natural surroundings.
As this is a natural area, there are some slopes and uneven surfaces. If you have difficulty walking, please stay within a comfortable range and do not overexert yourself.
Please follow environmental protection rules, such as carrying all your trash back with you and not damaging the vegetation. During events like the mountain burning, please follow all local instructions.