Discover Lake Onneto, One of Hokkaido’s Best-kept Secrets

Lake Onneto is a small lake in Akan-Mashu National Park famous for its stunning blue color. Surrounded by forests, volcanoes and other lakes, it is one of the most incredible secluded lakes in Hokkaido, appearing to be a different color depending on the time of day and the angle from which it is viewed.  Leisurely explore the area’s pristine forest with a Tsuruga Adventure guide, soaking up scenery that includes moss, alpine plants and an abundance of 300-year-old trees. The lakeside is one of the few places in Hokkaido where Sakhalin spruce can be found, so keep your eyes peeled for the rare sight as you wander.