Rebun, Okhotsk Area, Eastern Hokkaido
Altitude 999 m, 43° 42′ N, 144° 19′ E
Lake Kussharo, Mt Mokoto in the early morning during the frigid season.
Lake Kussharo is a caldera lake located in eastern Hokkaido, included in Akan-Mashu National Park. Mokoto is the highest mountain in the outer rim of the Kussharo Caldera. In summer, there is a trail along the ridge from the observatory, and it is known for its easy view of the lake. In winter, the trail is closed to vehicular traffic.