Lake Kushu is the only lake on the island of Rebun in the northern part of Hokkaido. The lake, 4 km in circumference, is the northernmost lake in Japan. Known as “the Island of Flowers,” Rebun Island is the treasure trove of alpine plants and wild birds.

Lake Kushu is a scenic spot where you can enjoy bountiful nature to your heart content. The wetland around Lake Kushu is covered with the community of skunk cabbages from the middle of April through the early May. In June, Rebun-atsumoriso (Cypripedium marcanthum var. rebunense), which is a variation of large-flowered cypripedium, produce gorgeous flowers. You can also enjoy watching various kinds of wild birds from the promenede.

The lakeside is suitable for outdoor activities. There is a camping site provided with cottages, bungalows and auto-camping sites. You can taste “Japan’s northernmost milk” in the nearby ranch.