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Kusatsu Onsen Sen 草津温泉 千
Kusatsu, Gunma · Private-bath facts checked on the official website: kusatsusen.com ↗ · last verified 17 October 2026
Does Kusatsu Onsen Sen have a private onsen?
Yes. Kusatsu Onsen Sen in Kusatsu has 3 private (kashikiri) baths that one group at a time can lock and use. The private baths are first come, first served. It does not state a tattoo policy. The spring water is described as free-flowing (kakenagashi). Checked on its official website on 17 October 2026.
Last verified · How we verify · Open data
What private baths does Kusatsu Onsen Sen have?
| In-room open-air bath | Not confirmed |
|---|---|
| Private (kashikiri) baths | Yes, 3 baths source ↗ |
| Private bath fee | Not confirmed |
| How to use the private bath | First come, first served (lock the door) source ↗ |
| Spring water | Free-flowing spring water (kakenagashi) mentioned; some baths noted as with added water source ↗ |
| Tattoos: private baths | Not confirmed |
| Tattoos: shared baths | Not confirmed |
| Children | Not confirmed |
| In-room dining | Not confirmed |
| Day-use private bath | Not confirmed |
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Kusatsu Onsen Sen on Rakuten Travel

- From ¥12,350 per room per night: Rakuten's lowest-rate estimate for its cheapest plan (which may be for one guest without meals), including tax and service charge (as of )
- Guest rating 4.09 out of 5 from 598 reviews on Rakuten Travel
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About Kusatsu Onsen Sen
Kusatsu Onsen Sen, written 草津温泉 千 in Japanese, is a ryokan in Kusatsu, in the Kusatsu area. Below we've pulled together what its own website says about private bathing: in-room baths, private family baths, the water and the tattoo rules.
There are 3 private (kashikiri) baths that one group at a time can lock and use. They are first come, first served: if the bath is free, go in and lock the door. We found no mention of rooms with their own open-air bath, so the private bath is the way to bathe alone here.
The property describes its water as free-flowing (源泉かけ流し), fed from the source rather than recirculated, although it also notes that some baths are with added water. The website doesn't state a tattoo policy. If that matters to you, email the property before booking.
Anything marked 'not confirmed' below, such as in-room baths and tattoo rules for private baths, wasn't stated on the pages we checked. That doesn't mean the answer is no, only that we haven't assumed one. We checked the official website on 17 October 2026. Rules and fees change, so confirm with the property, and use the buttons above to compare the same room across booking sites, including taxes and cancellation terms.
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