Photo by 掬茶, via Wikimedia Commons (CC BY-SA 4.0)
🇯🇵 Japan · Nyuto Onsenkyo, Senboku, Akita Prefecture
Photo by 掬茶, via Wikimedia Commons (CC BY-SA 4.0)
🇯🇵 Japan · Nyuto Onsenkyo, Senboku, Akita Prefecture
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📅 Established
1638
✓ Verified on 2026-07-28
Tsurunoyu Onsen is the oldest hot spring inn in the Nyuto Onsenkyo area at the foot of Mount Nyuto, with records dating to 1638 when it served as a retreat for the Akita clan. The inn retains thatched-roof buildings and lantern-lit corridors, and offers four baths of differing composition, including the milky-white sulfur bath known as Shiroyu (white water) and the darker Kuroyu (black water). The name comes from a local account of a hunter who saw a crane healing its wounds in the spring.
Records indicate Tsurunoyu was used as a therapeutic retreat by the Akita clan from around 1638, making it the oldest documented hot spring inn in the Nyuto Onsenkyo area.
The inn maintains four separate baths with different mineral compositions, including a milky-white mixed-gender open-air bath, reflecting a traditional approach of bathing in different waters for different purported benefits.
Phone+81-187-46-2139
Websitewww.tsurunoyu.com/english.html
Address50 Kokuyurin, Sendatsuizawa, Tazawa, Senboku-shi, Akita, Japan