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Kasui Niwa Oya 花水庭おおや
Lake Kawaguchiko, Yamanashi · Private-bath facts checked on the official website: kasuitei-ooya.co.jp ↗ · last verified 17 October 2026
Does Kasui Niwa Oya have a private onsen?
Yes. Kasui Niwa Oya in Lake Kawaguchiko sells room types with a private open-air bath, so choose one of those rooms when you book. It also has private (kashikiri) baths (stated fee ¥3,300). Private-bath slots are booked at the property. It does not state a tattoo policy. Checked on its official website on 17 October 2026.
Last verified · How we verify · Open data
What private baths does Kasui Niwa Oya have?
| In-room open-air bath | Yes, in some or all room types source ↗ |
|---|---|
| Private (kashikiri) baths | Yes source ↗ |
| Private bath fee | Paid (¥3,300) source ↗ |
| How to use the private bath | Book a time slot source ↗ |
| Spring water | Not confirmed |
| 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 | Confirmed: Fuji view from rooms or baths View from: rooms (some rooms only). 眺望は河口湖畔側客室、富士山側客室、中側客室の3タイプ。official website, checked 2026-10-17 |
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Kasui Niwa Oya on Rakuten Travel
- From ¥17,600 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 4.40 out of 5 from 796 reviews on Rakuten Travel
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About Kasui Niwa Oya
Kasui Niwa Oya, written 花水庭おおや in Japanese, is a ryokan in Lake Kawaguchiko, about 0.6 km in a straight line from Kawaguchiko Station. 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.
Rooms with their own open-air bath are offered, but the website doesn't say every room has one, so pick the room type carefully when you book. There are private (kashikiri) baths that one group at a time can lock and use, and the website lists a charge (¥3,300). Slots are booked, so ask for a time at check-in.
The website doesn't state a tattoo policy. If that matters to you, email the property before booking. Its official website also confirms Mt Fuji views; seeing the mountain still depends on the weather and on which side of the building your room faces. Children are accepted; the site mentions child rates or bedding options.
Anything marked 'not confirmed' below, such as the water source 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 Lake Kawaguchiko area
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