Baien Garden Resort

由布院梅園 GARDEN RESORTゆふいんうめぞの GARDEN RESORT

Lodging

Yufuin Onsen

Kyushu & Okinawa·Oita

050-3528-2940 yufuin-baien.com

Day Use

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

OnsenYes

Uses natural hot spring water

Capabilities

Private BathYes

Private bath available for day-use visitors or hotel guests to reserve

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

when using stickers

天心の大湯

Tenshin no Oyu Spring

Operated by · 梅本興業株式会社

湯

Simple

Color: colorless and clear
Taste: tasteless
Odor: odorless

Sodium Bicarbonate-Chloride spring

pH 7.3NeutralHot source · 60°CHigh silica

Composition fingerprint0.6 g/kg dissolved · Hypotonic

Na⁺82

HCO₃⁻56

Cl⁻34

◀ CationsAnions ▶

Sodium Na⁺: salt's cation — pairs with chloride to make the water salty.
Bicarbonate HCO₃⁻: "soda" — softens skin, leaves it smooth.

Known good for

Aches & jointsstiff shoulders
Smooth skindry, rough skin
Recoveryfatigue, stress

Tenshin no Oyu is a gentle simple thermal spring drawn from a hot 60 °C source, neutral in pH and lightly mineralized at just 597 mg/kg of dissolved solids. What sets it apart is a generous 245 mg/kg of metasilicic acid, which leaves the kind of thin silica film that makes skin feel noticeably smoother afterwards, placing it in the Japanese beauty-water family. The water is colorless, clear, tasteless and odorless, sampled at the inlet of the family bath.

Sampled at bath inlet·Analyzed Oct 20, 2015·公益社団法人大分県薬剤師会検査センター·Cert no. 大薬検第7R-2710002号

Explore the water

Views

Mountains

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4.0

3 reviews

from 1 reviewer

Sergey M

1 year ago

501. Baien Garden Resort, Yufuin (pt.1) ★★ Stayed overnight. Had single dinner and breakfast, served in a separate space. Food overall was decent, maybe breakfast was a bit simple. Lots of guests with families and children. Overall felt like the place is well-suited for staying with a family or large group, both in terms of dining organization and the large private baths. Plenty of staff: both Japanese and non-Japanese. At dinner, a Japanese staff member with limited English felt very awkward and struggled pronouncing kaiseki dish names. But in terms of expected service for a hotel with heavy traffic, everything was comfortable — they showed me the room, held the dinner start (I needed a slight delay), efficient taxi ordering, fast kaiseki service (despite the English hiccups), and saw me off at checkout. Maybe some extra small talk about taxis. About the onsens. 1. Left private large outdoor stone bath. No reservation needed, first-come-first-served. The bath has essentially no view — behind a fence — but it's still very cozy and atmospheric. The bottom of the bath is made of stones with different textures: a path runs along pleasant-to-touch stone, while around the path it's rougher, less comfortable stone. Clear water, temperature in the evening 42-42.5. 2. Right private large outdoor stone bath. Practically identical to the left bath. Clear water, temperature in the morning 42. 3. Public indoor bath. Clear water, temperature 41. Breathing inside is good. 09.04.2025 10.04.2025

Sergey M

1 year ago

501. Baien Garden Resort, Yufuin (pt.2) ★★ About the onsens: 4. Public outdoor stone bath. Judging by photos you should be able to see the mountain from the onsen, but it was dark late in the evening, and in the morning I got a Silent Hill effect, which I appreciated more than the mountain view. Clear water, temperature 41.5. Great place, excellent rotenburo, and very strong private baths. If staying with family in Yufuin, I'd recommend considering this for accommodation. 09.04.2025 10.04.2025