100% natural hot spring, flowing 24 hours a day
Each is named for a season and fed straight from the source, and each has stained glass in its own colours.
Stained glass in warm tones, so that you feel the soft light of spring. In a bright, unhurried room, a bath that lets you unwind.
2 to 4 guests
Stained glass in fresh, cool tones, drawn from the summer sun and the clear air of the highlands. A crisp, comfortable bath, as though the cool air were wrapped around you.
1 to 3 guests
Stained glass that renders a forest turning red and yellow. Feel the warmth of deepening autumn, and take your time in the water.
1 to 3 guests
Stained glass in clear tones, for the season when the mountains are wrapped in snow and ice. A calm bath, with the quiet and the crispness of winter around you.
1 to 3 guests
There is both an onsen and a sauna here. We set store by the time spent moving between them.
A proper Finnish sauna, private — reserved for your group alone. A room where you can pour water over the stones, and a cold bath, for up to three guests. JPY 2,000 for 50 minutes, entirely private (for up to two guests; from the third guest, JPY 500 per person is added). It can be used from 15:00, after check-in, until 22:00. To book, let us know your preferred time in advance, or ask at the front desk at or after check-in.
About the sauna
A cold bath filled with Kusatsu’s cold water. No hurry, until your breathing settles.
