Purpose-built day-trip hot spring at Tonosawa with a sauna and scheduled staff-led löyly in the public bath. The operator says there is no accommodation; admission to the main bath includes the sauna. A free shuttle runs from Hakone Yumoto station.
Amenities
Sauna Rituals
Cold Plunge
Private Sauna Available
Opening Hours
Weekdays 10:00–20:00; weekends and holidays 10:00–21:00; final entry one hour before close