永源寺温泉 八風の湯えいげんじおんせん はっぷうのゆ
Riverside spa complex with rotenburo, salt sauna, and a daily herbal bath
Last entry is 9:00 PM, even though the doors stay open until 10:00 PM. Open every day of the year, though it may close occasionally for maintenance.
Adults (junior high and up) are JPY 1,300 on weekdays and JPY 1,700 on weekends and holidays. Elementary-age kids are JPY 700 on weekdays and JPY 800 on weekends and holidays, and children under 3 are a flat JPY 200. The price includes a hand towel, bath towel, and loungewear, allows same-day re-entry, and covers the bedrock bath (ganbanyoku, 岩盤浴).
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Private onsen bath in guest rooms, for overnight guests only
Applies to the attached inn Happu Bekkan (八風別館) — every guest room has its own onsen open-air bath.
Shared bathing area for all genders
Allows entry with visible tattoos
Welcomes children and families
Children of elementary-school age or younger must be accompanied by a guardian; by local ordinance, mixed-gender bathing is prohibited from age 8 up.
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
Eigenji Onsen Happo no Yu offers clean hot spring baths with outdoor pools that provide views of snow and mountains. Some rooms feature private baths overlooking the river, allowing guests to relax while enjoying natural scenery.
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Last updated October 7, 2026