Sensui — private onsen

Kusatsu Onsen 草津温泉 — Gunma

Sensui

Private open-air bath in your room

There is no shared bath here at all — Yubatake source water is piped into the bath of every room instead, free-flowing.

Private open-air bath in your roomfrom ~$258 / night

The details

Area
Kusatsu Onsen, Gunma
Private bath
Private open-air bath in your room — There is no shared bath here at all — Yubatake source water is piped into the bath of every room instead, free-flowing.
Water flow
Free-flowing kakenagashi — poured straight from the source, not recirculated
Price guide
From ~$258 per night (checked on Klook, Nov 2026)
Access
About 3.5-4 h from Tokyo (train + bus via Karuizawa or Naganohara-Kusatsuguchi)
Day-trip bathing
Overnight stay only

The Yubatake steams in the middle of town — water so hot and strong they still cool it by hand, the old way. And the bath? It's in your room. Not down a corridor, not on a sign-up sheet. Run it before dinner. Run it again at midnight. Wake up and get straight back in — nobody's timetable touches you here.

Sensui
Sensui

Private-bath and water facts were checked against the property's official site and Japanese booking pages in November 2026. Room plans change — confirm the private bath is included in the plan you book.

Kusatsu Onsenfrom ~$258 / nightCheck on Klook →

More in Kusatsu Onsen

Keep looking