From the hot spring and sauna facilities visited across Japan in December 2025, we present a ranking of the most impressive places, evaluated comprehensively based on the quality of the sauna, the cold plunge bath, the natural hot spring water quality, the outdoor relaxation environment, dining, the overall atmosphere of the facility, and customer service.

In November 2025, from the hot spring and sauna facilities visited across Japan, we comprehensively evaluated the quality of the saunas, cold plunge baths, natural hot spring water quality, outdoor relaxation environment, food, overall atmosphere of the facility, and customer service. We present the facilities that left a particularly strong impression in a ranking format.

In October 2025, we present a ranking of the most memorable hot spring and sauna facilities in Japan that we actually visited.