越後湯澤 HATAGO井仙
Uses natural hot spring water
Open-air outdoor bath
Open-air baths exist only as private in-room baths (specific room types); the shared 大浴場 is not described as having an outdoor section.
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
Only some of the 8 room types (e.g. 雅/響/稜/駿/翔) have their own outdoor bath; others do not.
Shared bathing area for all genders
Reviewer's account confirms a gender-separated women's bath (not mixed); no source mentions 混浴.
Welcomes children and families
One reviewer reports the front desk said children up to age 10 may accompany a parent into the opposite-gender bath; not stated on the official site.
Restaurant or dining open to visitors (not just hotel meal plans)
On-site or nearby parking available
Paid parking since July 2025: ¥300/30min, or ¥1,000/night for overnight guests.
HATAGO Isen is a 16-room ryokan directly across from Echigo-Yuzawa Station. The shared indoor bath runs on kakenagashi (掛け流し) spring water, kept flowing rather than recirculated, and several of the eight room types have their own private open-air bath you can soak in any time. If you'd rather not use the shared bath, there's also a private bath upstairs you can rent for a fee. The inn sits in Echigo-Yuzawa, a hot-spring town with some 800 years of history, and pairs the baths with a restaurant built around Uonuma-grown rice and local vegetables.
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Last updated July 30, 2026