On our way to Lake Shikotsu from Sapporo City, ragged peak line of Mt.Eniwa(dake) with the white hillside could be seen c;early.
Going down the crater that includes the lake, you can find the aged Japanese-style hotel called "Marukoma Onsen". It seemed that the hot spring had been registered as one of the hidden hot spring spa in Japan and supported by the association to protect such hidden hot spring.
The interior of the hotel seemed to have had been refurbished. International tourists also visit this hotel frequently nowadays.