PR This page contains affiliate links, including Rakuten Travel. How we earn money
KAI Sengokuhara 界 仙石原
Hakone, Kanagawa · Private-bath facts checked on the official website: hoshinoresorts.com/ja/hotels/kaisengokuhara ↗ · last verified 17 October 2026
Does KAI Sengokuhara have a private onsen?
Yes. KAI Sengokuhara in Hakone says every room has its own open-air bath, so you can bathe privately whenever you like. It does not state a tattoo policy. The spring water is described as free-flowing (kakenagashi). Anything a website does not state is marked not confirmed. Checked on its official website on 17 October 2026.
Last verified · How we verify · Open data
What private baths does KAI Sengokuhara have?
| In-room open-air bath | All rooms source ↗ |
|---|---|
| Private (kashikiri) baths | Not confirmed |
| Private bath fee | Not confirmed |
| How to use the private bath | Not confirmed |
| Spring water | Free-flowing spring water (kakenagashi) mentioned source ↗ |
| Tattoos: private baths | Not confirmed |
| Tattoos: shared baths | Not confirmed |
| Children | Children accepted source ↗ |
| In-room dining | Not confirmed |
| Day-use private bath | Not confirmed |
| Mt Fuji view | Not confirmed We found no statement on the official website that rooms or baths face Mt Fuji. That does not mean there is no view; ask the property. |
Compare prices
Compare-price links go to Agoda, Trip.com, Booking.com and Rakuten Travel. We may earn a commission if you book, at no extra cost to you; it never affects which facts we show. Details.
About KAI Sengokuhara
KAI Sengokuhara (界 仙石原) is a ryokan in Hakone, about 2.8 km in a straight line from Sōunzan Station. This page sums up what its official website says about private bathing, so you can see at a glance whether it suits a couple, a family or a guest with tattoos.
The website says all rooms come with an open-air bath, so private bathing is part of every booking. We couldn't find any mention of a separate private (kashikiri) bath on the official site.
The property describes its water as free-flowing (源泉かけ流し), fed from the source rather than recirculated. The website doesn't state a tattoo policy. If that matters to you, email the property before booking. Children are accepted; the site mentions child rates or bedding options.
Anything marked 'not confirmed' below, such as private 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.
The Hakone area
Day-use private baths nearby
- Odakyu Hotel Hatsuhana (はつはな, 7.6 km)
- Fukuzumiro (福住楼, 8.2 km)
- Hotel Odaka (Hotel Okada, 8.3 km)
Day trips around Hakone
Planning a day out? Browse Hakone tours and passes on Klook.