新高湯温泉 五つの絶景露天風呂 吾妻屋旅館にいたかゆおんせん いつつのぜっけいろてんぶろ あづまやりょかん
In winter, snow or road conditions may make access impossible. The Genryu Takimi rotenburo (源流滝見露天風呂) is closed until late May due to snow.
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Private bath available for day-use visitors or hotel guests to reserve
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Most outdoor baths are mixed-gender (konyoku) except Oiwa-tanuki bath (women-only with morning men's time). All outdoor baths become women-only 18:00-20:00.
Restaurant or dining open to visitors (not just hotel meal plans)
Meals are served in-room or in a separate private room only; no communal restaurant open to day visitors.
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Reported ¥200 towel fee, apparently aimed at day-trip bathers (the facility's overnight-guest amenity list separately shows hand towels and bath towels provided free in-room).
Relaxation space for after bathing
On-site or nearby parking available
Azumaya Ryokan (吾妻屋旅館) is a lone inn tucked into the mountains above Yonezawa, open since the Meiji era and a member of the Nihon Hitou wo Mamoru Kai (日本秘湯を守る会), Japan's hidden-hot-spring preservation society. There are five outdoor baths, each with its own character: one looks out over the Iide mountain range, another is carved from the trunk of a 300-year-old chestnut tree, and a third sits beside a waterfall (accessible only from late May once the snow clears). The water runs milky and faintly sulfurous, fed kakenagashi straight from the spring. Most outdoor baths are mixed-gender (konyoku, 混浴), with a dedicated women-only bath and all outdoor baths reserved for women between 18:00 and 20:00. Indoor baths are for overnight guests only.
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Last updated July 22, 2026