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Nonohana

お宿 野の花おやど ののはな

Lodging
Kyushu & Okinawa·Kumamoto

Day Use

Yes
08:30–10:00, 14:00–21:00

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

Capabilities

Room OnsenYes

Private onsen bath in guest rooms, for overnight guests only

黒川温泉(お宿野の花)

Kurokawa Onsen (Oyado Nonohana)

Operated by · 有限会社 火乃山開発

Simple
Color
colorless and clear
Taste
tart, acidic
Odor
earthy

Sodium Sulfate-Bicarbonate-Chloride spring

pH 6.6NeutralHot source · 64°CHigh silica
Composition fingerprint0.4 g/kg dissolved · Hypotonic
Na⁺66
K⁺16
SO₄²⁻39
HCO₃⁻34
Cl⁻25
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Sulfate SO₄²⁻
"gypsum / Glauber's salt" — vessels and wound healing.
Known good for
  • Aches & jointsstiff shoulders
  • Smooth skindry, rough skin
  • Recoveryfatigue, stress

A hot 64.2 degrees Celsius spring classified as a simple thermal source, neutral at the wellhead (pH 6.6). Sensory notes give it character: colorless and clear, with a faint tart edge on the tongue and a quiet earthy note. Total dissolved solids are light (370 mg/kg), but metasilicic acid runs to a generous 151.5 mg/kg, leaving the kind of silica film that makes skin feel noticeably smoother afterwards.

Sampled at wellhead·Analyzed Apr 25, 2005·株式会社 同仁グローカル·Cert no. S0411649

Explore the water

Views

Forest
River

Programs

Loading map…

4.0

1 review

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Sergey M
1 year ago

415. Nonohana, Kurokawa Onsen ★★ Visited for higaeri. Located at a distance from the center of Kurokawa. Higaeri usually available from 8:30 to 10:00 and from 15:00 to 21:00. Included in the Kurokawa tegata. There's a men/women bath rotation during the day at 15:00, with morning and evening bath sets being fixed rather than alternating. 1. Bath sets available in the morning. 1.1. Indoor bath in the outdoor zone near the exit. Clear water, sparse fine white mineral deposits, very faint proper sulfurous onsen smell. Temperature 42. 1.2. Slightly lower outdoor stone bath. Clear water, very faint proper sulfurous onsen smell. Temperature 43.5. View of trees and the river. 1.3. Separate indoor bath in a separate building before entering the outdoor zone. Water is clear, slightly cloudy, temperature 43. Breathing inside is fine. 2. Bath sets available in the afternoon. 2.1. Upper outdoor stone bath, clear water, bubbling. Temperature 44. 2.2. Lower outdoor stone bath with clear water, temperature 44-45. Small view of the river and forest. Notably, you sit in the bath under a "burned" tree that goes through the roof of the bath, which adds a unique atmosphere. 2.3. Indoor bath, clear water, temperature 42. Breathing inside is comfortable. Another great rotenburo in the village with a solid set of baths and men/women rotation. Combined with nearby options, definitely worth considering for a visit. 13.01.2025 08.04.2025 09.04.2025

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Onsen Oni

Last updated June 19, 2026