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Ryokan with an open-air bath in the room in Noboribetsu

Stays in Noboribetsu where you can soak in an onsen bath on your own room’s terrace.

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Stays in Noboribetsu

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  1. Noboribetsu Onsen Manseikaku

    Noboribetsu Onsen Manseikaku

    Noboribetsu, Hokkaido

    • Rooms with private open-air bath
    • Reservable private bath

    Iron Spring · Sulfur spring · Acidic (pH under 3)

    pH 2.3
    See the spring data ›
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    Sources & details
    • Analysis report on file
    • Private bath checked Oct 2026

    Spring type: Acidic Sulfur-containing Iron(II,III) Simple Hot Spring (hydrogen sulfide type) / Free-flowing, with heating, added water or filtering / Water added / Metasilicic acid 76.6 mg/kg

    Source: in-room bath (travel.yahoo.co.jp) · private bath (noboribetsu-manseikaku.jp) · Checked May 30, 2026

  2. Bourou NOGUCHI Noboribetsu

    Bourou NOGUCHI Noboribetsu

    Noboribetsu, Hokkaido

    • Rooms with private open-air bath
    • Reservable private bath

    Sulfur Spring · Chloride spring

    pH 5.7
    See the spring data ›
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    Also onAgodaExpediaBooking.comRakuten Travel
    Sources & details
    • Analysis report on file

    Spring type: Sulfur-containing Sodium-Calcium Chloride and Sulfate Hot Spring (hydrogen sulfide type) / Free-flowing, with heating, added water or filtering / Water added / Metasilicic acid 130.3 mg/kg

    Source: in-room bath (jalan.net) · private bath (jalan.net) · Checked May 30, 2026

  3. Noboribetsu Onsen Hotel Mahoroba
    • Rooms with private open-air bath

    Chloride Spring

    pH 6.7
    See the spring data ›
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    • Analysis report on file

    Spring type: Sodium-Calcium Chloride Hot Spring / Recirculated or disinfected / Water added / Metasilicic acid 484.3 mg/kg

    Source: in-room bath (vertexaisearch.cloud.google.com) · Checked May 30, 2026

  4. Noboribetsu Onsen Dai-ichi Takimotokan
    • Rooms with private open-air bath

    Iron Spring · Acidic (pH under 3) · Chloride spring

    pH 2.2
    See the spring data ›
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    Sources & details
    • Analysis report on file

    Spring type: Acidic Iron(II,III)-containing Sodium Sulfate and Chloride Hot Spring / Free-flowing, with heating, added water or filtering / Water added / Metasilicic acid 148.6 mg/kg

    Source: in-room bath (takimotokan.co.jp) · Checked May 30, 2026

  5. Noboribetsu Onsen Takinoya

    Noboribetsu Onsen Takinoya

    Noboribetsu, Hokkaido

    • Rooms with private open-air bath

    Sulfur Spring · Chloride spring

    pH 6.4
    See the spring data ›
    PRIncludes affiliate links
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    Also onAgodaRakuten Travel
    Sources & details
    • Analysis report on file

    Spring type: Sulfur-containing Sodium-Calcium Chloride and Bicarbonate Hot Spring (hydrogen sulfide type) / Free-flowing, with heating, added water or filtering / Water added / Metasilicic acid 236.4 mg/kg

    Source: in-room bath (takinoya.co.jp) · Checked May 31, 2026

  6. Noboribetsu Onsen Ryotei Hanayura
    • Rooms with private open-air bath

    No onsen analysis report on file yet

    PRIncludes affiliate links
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    Also onAgodaExpediaBooking.comRakuten TravelJalan
    Sources & details
    • Private bath checked Oct 2026

    Source: in-room bath (travel.rakuten.co.jp)

Sorted using onsen analysis reports and what each property states on its own or booking-site page.

About in-room open-air baths
Rooms with a private open-air bath
The bath is part of your guest room (kyakushitsu rotenburo). Usually only some room types have one, so check the room type when you book.

The water in a room’s bath may come from a different source, or be heated or recirculated differently, than the shared baths. Even for stays with an analysis report, ask the property how the in-room bath is supplied.

How we know

A stay is listed only when its official website or booking-site page says some rooms have a private open-air bath. Usually only certain room types have one, so check the room type when you book.

  • Private bath and tattoo information comes from each property's official website or other published information. Every item links to its source and shows the date we last checked it. Items we could not source are left out.
  • Spring type, pH and how the water is used come from the onsen analysis report that Japanese law requires each facility to post, and from the facility's water-usage notice. They are shown only for stays whose report we have on file.
  • Details can change after we check them. Please confirm with the property before you book, especially tattoo rules and private bath fees.
  • Booking buttons are affiliate links. They do not affect which stays are listed.
See also
Ryokan with private onsen in Noboribetsu