Lake Okotanpe
Located at the base of Mt. Eniwa, you can view Lake Okotanpe, which along with Lake Onneto and Lake Shinonome, is one of Hokkaido's three mysterious lakes. The circumference of this small lake is about five kilometers, and visitors are attracted by the changing color of the lake's surface, ranging from emerald green to cobalt blue depending on the weather. Although it is forbidden to go down to the lakeside, you can see it from the observation deck.