148. Okumyoban Sanso, Beppu ★★ Addendum to the previous review. They stamp the Beppu Onsen-do book. An OYUCA card was issued for this onsen. This time we took a different private onsen — the largest one. It has two baths — an outdoor stone one and an indoor one. Both with white-blue water with plenty of fine white mineral deposits, that proper onsen sulfur smell. Both baths at temperature 42. As in the first review — excellent place, recommended for visiting. The remoteness is actually a plus for this place. 05.04.2025
Okumyoban Sanso
奥みょうばん山荘おくみょうばんさんそう
Lodging
Day Use
Yes10:00–20:00
10:00~ Reception until 20:00, summer hours may vary
¥600
¥600 per person per hour for private use
Bathing & Water
Outdoor BathYes
Open-air outdoor bath
Indoor BathYes
Enclosed indoor bathing area
SaunaNo
Dry heat sauna room
Cold BathNo
Cold water plunge bath, typically used after sauna
OnsenYes
Uses natural hot spring water
Capabilities
Private BathYes
Private bath available for day-use visitors or hotel guests to reserve
Room OnsenNo
Private onsen bath in guest rooms, for overnight guests only
Mixed BathingNo
Shared bathing area for all genders
Policies & Services
TattooYes
Allows entry with visible tattoos
KidsYes
Welcomes children and families
WashingYes
Shower, wash stations, soap and shampoo provided
TowelsYes
Towels available to rent or borrow
ParkingYes
On-site or nearby parking available
Views
Mountains
Forest
CityPrograms
About
A hot spring retreat protected by onsen enthusiasts. The source spring of this facility emits steam because the water temperature exceeds boiling point. Using a homemade device, the temperature is lowered to intentionally obtain liquid hot spring water. As the hot spring water flows through the homemade equipment, heat escapes and hot spring crystals called "Yunohana" float in the water.
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148. Okumyoban Sanso, Beppu The place is a bit out in the sticks - the taxi driver didn't immediately understand where to go. Operating hours listed from 10 to 20. As I understood, the format is renting one of four private baths. 550 yen for one bath per person. They led me to the far right one in the wooden building. No shower, body wash/shampoo available. Stamp given at a separate building nearby. The water in the bath is milky, with a lot of fine white mineral deposits (visible in the photo). Temperature hot-. Noticeably sulfurous smell. Great place, if I had more time I'd visit the other private baths too.