This national park features Onuma Lake, Konuma Lake, Junsai Swamp, and the 1131-meter-tall Mt. Komagatake as a backdrop. This marshland was produced in the wake of an eruption from Mt. Komagatake, and some 126 islands dot its surface.
Onumacho, Nanae-cho, Kameda-gun, Hokkaido, 041-1354
- Nearest Station
･ Hakodate Main Line
- Phone Number
0138-67-2170Available languagesonly in Japanese
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