Yumura Onsen Asanoya

Rooms with an open-air onsen bath (露天風呂付客室), e.g. the Western-style Sango and Bengara (queen bed), the two-room Hanaasagi and Shion (12 + 4.5 tatami), or the special rooms Enji, Ruri and the 22-tatami Konruri

The inn's FAQ lists 15 rooms with their own open-air tub, all filled from its own sources. 2026 Ikyu reviewers in these rooms were among the happiest. A guest in Sango/Bengara at the end of September gave full marks and thanked staff for adjusting the water temperature. In late August, a family in a two-room open-air suite went back for one last soak before leaving. One September guest in a Japanese-Western open-air room heard what sounded like a boiler at night. Another in early October had no usable Wi-Fi. All rooms with beds are non-smoking.

Standard Japanese rooms, 12 or 12.5 tatami (和室12畳/12.5畳), or the two-room 12.5 + 6 tatami type with two beds (和室2間)

The best value. Every standard room is 10 tatami or more, and although the bath is only a unit bath, the tap runs straight from the source. A guest in a December 2024 blog wrote that you can let it overflow or add cold water as you like, and that this water felt better than most of the large-bath tubs. They found the 12-tatami room spacious, with a broad window-side engawa, and their meals were served in the room next door. 2026 Jalan reviewers on the cheapest two-meal plans (¥15,000–19,000 per person) praised clean, bright rooms. One was quietly upgraded to a larger room. The two-room type with beds suits older guests: one 2026 reviewer was glad of the beds for their elderly parent.

Yukomori (湯籠里, opened 2023) Deluxe Twin 'Akane', and anyone sensitive to windowless rooms

Yukomori is the inn's 'grown-up hideaway' wing: five rooms with an open-air bath and their own dining room next door. The Deluxe Twin, though, has no window. A guest who stayed in March 2025 wrote that it felt closed-in and advised picking a room with a window next time. A July 2023 guest liked the new hinoki tub but found the room had a toilet and no washbasin, so they had to walk to the powder room to wash their hands. An August 2026 repeat guest (in a twin room) also mentioned a windowless, oppressive room and two steps inside it. Ask which Yukomori room you're getting; the Suite (3 rooms) and Executive (1 room) types pair a twin bedroom with a tatami room.