
Guide
Kaminoiko is a breathtakingly clear pond located within a forest in Kiyosato, Hokkaido. While relatively small—approximately 220 meters in circumference and about 5 meters deep—its water quality is extraordinary. The clarity is so high that the bottom is perfectly visible. The water color shifts beautifully from a vibrant turquoise to a deep emerald green, creating a deeply mystical atmosphere. Large fallen trees rest at the bottom, creating a complex and beautiful landscape of light and shadow.
The pond is named "Kaminoiko" (Pond of the Gods) due to the legend that it is fed by the underground springs of Lake Mashu. Lake Mashu is a rare type of lake with no visible rivers flowing in or out, and the surrounding area is rich in such spring-fed waters. The water temperature remains low at approximately 8°C throughout the year. This low temperature slows the decomposition of organic matter, allowing the fallen trees to remain preserved in their original form for a long time. In 2017, the area was incorporated into the Akan Mashu National Park.

The greatest attraction is undoubtedly the color and transparency. When sunlight pierces the surface, the white volcanic ash on the bottom reflects the light, creating a brilliant blue glow. The sunken logs give the impression that time has stood still, embodying the silent beauty of nature. Additionally, near the pond lies "Sakura Falls," where you may witness the dynamic sight of Chum salmon jumping upstream between June and August.
Kaminoiko shows different faces depending on the season. The transparency is most striking during the daytime when the sunlight is strongest. To capture the most vivid details of the underwater landscape, a sunny day during midday is ideal. The surrounding lush greenery makes the summer scenery particularly beautiful. However, please note that during winter, the area can be affected by heavy snow; always check the latest road conditions before traveling.
Observing the scenery in the silence of nature is a precious experience in itself. Depending on the season, guided tours such as the "Kaminoiko Snowshoe Tour" may be available, offering a unique way to experience the winter landscape. You can also observe the rich ecosystem, such as the Oshorokoma (a type of fish) swimming through the clear waters.
Kaminoiko is located within the Akan Mashu National Park area. The surrounding region features scenic viewpoints of Lake Mashu and beautiful driving routes leading toward the Shiretoko Peninsula. Exploring the streets of Kiyosato and the nearby forest roads offers a deeper connection to the natural beauty of Eastern Hokkaido.
As the pond is located within a forest, comfortable walking shoes are highly recommended. Please be aware that the parking area consists of unpaved roads, so drive with caution. Even in summer, the temperature near the water can feel cool, so bringing layers is a good idea. To protect the environment, please follow all rules regarding trash disposal and stay within the designated viewing areas.