Hokkaido Official Tourism Site HOKKAIDO LOVE!

Surrounded by lush primeval forests, Lake Kuttara is a stunning caldera lake designated as a special zone within Shikotsu-Toya National Park. In 2001, it was recognized by the Ministry of the Environment as having the highest water quality among all lakes in Japan.

When you stand at the water's edge, a brilliant cobalt blue surface of incredible clarity stretches out before your eyes. The surrounding ancient forest transforms with the seasons: vibrant new leaves in spring, deep greenery reflecting on the lake in summer, fiery red and yellow foliage in autumn, and a quiet blanket of snow in winter. With no rivers flowing in or out, the water remains remarkably clear. On calm days, the lake acts as a perfect mirror reflecting the sky and forest, with only the occasional birdsong breaking the peaceful silence.

To protect this pristine environment, access for large buses is restricted, keeping the number of visitors small. In this silence, free from the sound of engines, you can hear the rustle of leaves in the breeze and the subtle movements of wildlife in the distance. As you breathe in the crisp air, the scent of the forest tickles your senses, and time seems to slow down in this mystical setting. Its breathtaking beauty has even made it a chosen location for television commercials—a sight you will want to linger over and cherish forever.