
Guide
The Koza River is a major river flowing through southern Wakayama Prefecture. It is officially recognized by the Ministry of the Environment as an 'AA-type' water source, representing the highest standard of water purity. The river's extreme clarity and the way it winds through steep, dramatic mountains create a breathtaking landscape. The sight of the riverbed clearly visible through the shimmering surface is a truly captivating experience for all visitors.
The Koza River basin has a long history of being a vital area for the forestry industry, providing high-quality timber that supported the local economy. The region has maintained a delicate balance with its environment through careful management and conservation efforts. This dedication to preserving the natural ecosystem ensures that the area remains a vital sanctuary for biodiversity and a testament to the harmonious coexistence between humans and nature.

The greatest draw of the Koza River is the dynamic interplay between the crystal-clear water and the surrounding mountain ranges. In calmer stretches of the river, the water takes on a stunning emerald green hue that looks almost otherworldly. Visitors can enjoy the scenery from various vantage points, including several bridges and scenic overlooks. The area around Michi-no-Eki Ichiman-iwa offers excellent spots to experience the raw beauty of the local landscape.
The scenery changes beautifully with every season. In spring, the banks are adorned with various cherry blossoms, including Kumanozakura and Kawazu-zakura, creating a stunning pink contrast against the blue water. Summer is the perfect time for cooling off by the river, while autumn brings a vibrant palette of red and gold to the mountainsides. Some periods also feature evening illuminations, offering a magical, ethereal atmosphere different from the daytime views.

There are plenty of ways to immerse yourself in nature here. You can enjoy water-based activities such as canoeing to experience the river from a different perspective. Additionally, at Michi-no-Eki Ichiman-iwa, you can enjoy a unique VR experience that brings the beauty of the Koza River to life through technology. Whether you are driving along the scenic riverside roads or taking a quiet stroll, the area is perfect for a refreshing escape from daily life.
The area around the Koza River is rich with natural attractions. Michi-no-Eki Ichiman-iwa serves as a great base for travelers to enjoy local specialties and explore the surroundings. The region is also famous for its scenic driving routes that pass by beautiful bridges and dams. Don't forget to try local products like yuzu or honey, which are popular specialties of this beautiful region.

When exploring the Koza River area, it is important to be prepared for the natural environment. Weather in mountainous river areas can change quickly, so we recommend wearing comfortable clothing, sturdy walking shoes, and carrying appropriate rain gear. To protect this precious ecosystem, please remember to take all your trash home with you and respect the natural surroundings.