CHOOSE A RYOKAN

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

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

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Stays in Kaminoyama

6 stays
  1. Kaminoyama Onsen Azumaya

    Kaminoyama Onsen Azumaya

    Kaminoyama, Yamagata

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

    No onsen analysis report on file yet

    Sources & details
  2. Kaminoyama Onsen Saika-tei Jidai-ya

    Kaminoyama Onsen Saika-tei Jidai-ya

    Kaminoyama, Yamagata

    • Rooms with private open-air bath

    No onsen analysis report on file yet

    Sources & details
    • Private bath checked Oct 2026

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

  3. Kaminoyama Onsen Nihon No Yado Koya

    Kaminoyama Onsen Nihon No Yado Koya

    Kaminoyama, Yamagata

    • Rooms with private open-air bath

    No onsen analysis report on file yet

    Sources & details
    • Private bath checked Oct 2026

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

  4. Kaminoyama Onsen Meigetsusou

    Kaminoyama Onsen Meigetsusou

    Kaminoyama, Yamagata

    • Rooms with private open-air bath

    No onsen analysis report on file yet

    Sources & details
    • Private bath checked Oct 2026

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

  5. Stay Inn Hotel Zaimoku Sakaeya

    Stay Inn Hotel Zaimoku Sakaeya

    Kaminoyama, Yamagata

    • Rooms with private open-air bath

    No onsen analysis report on file yet

    Sources & details
    • Private bath checked Oct 2026

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

  6. Mikiya San-soroku

    Mikiya San-soroku

    Kaminoyama, Yamagata

    • Rooms with private open-air bath

    No onsen analysis report on file yet

    Sources & details
    • Private bath checked Oct 2026

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

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.