Ryokan Ichinoi

黒川温泉 旅館 壱の井くろかわおんせん りょかん いちのい

Stay FacilityOperational

Day Use

10:00 – 14:30
Hours notes

There are days when the facility is closed.

Bathing & Water

Outdoor Bath

Open-air outdoor bath

Indoor Bath

Enclosed indoor bathing area

Onsen

Uses natural hot spring water

Capabilities

Private Bath

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

Policies & Services

TattooYes

Allows entry with visible tattoos

Washing

Shower, wash stations, soap and shampoo provided

美里

Misato Spring

Operated by · 旅館 壱の井

Sampled at wellhead
Sulfur

A simple sulfur spring of the hydrogen-sulfide type, carrying a faint rotten-egg note of H₂S and a slightly yellow, clear cast at the source. White flecks of 'yunohana' — sulfur crystals — drift in the water as a hallmark of the bath. Lightly mineralized and gentle on the body, it still delivers the unmistakable aroma of a true sulfur spring.

pH
8.00
Weakly alkaline
Source temperature
36.8°C
Hot
Tonicity
0.18g/kg
Hypotonic
Flow rate
213L/min
Typical
Free CO₂
290mg/kg
Typical
Color
faintly yellow and clear
Odor
faint hydrogen sulfide
Highlights
  • Sulfur-rich

Analyzed May 30, 2017·株式会社 同仁グローカル·Cert no. K19110704

Views

Forest

Programs

3.0

2 reviews

from 1 reviewer

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SM
Sergey M
1 year ago

14. Ryokan Ichinoi, Kurokawa Onsen ★ Visited for higaeri, located a short uphill walk from the Kurokawa tourist center. Higaeri usually available from 10:00 to 14:30/15:00, sometimes with several closed days per week. Included in the Kurokawa tegata. Higaeri guests only have access to one outdoor bath. Outdoor stone bath. Clear water with a small amount of fine white mineral deposits. Slight proper sulfurous onsen smell. Temperature 42-43. View from the bath of a hill and forest. Because the higaeri window is very narrow, not always available, it's uphill from the tourist center, and only one bath is accessible — for higaeri it may not be as interesting in Kurokawa compared to other ryokans. But that doesn't change the fact that it's a pleasant stone rotenburo with a natural view. 08.04.2025

SM
Sergey M
2 years ago

Day-use is available, included in the pass. They only let me into the outdoor bath. It's small, no showers for it, and you change almost outdoors. Medium water temperature, there is a smell, the water is clear with rare white pieces of "lime." Towel 200 yen. Compared to other options in Kurokawa, in this limited format you can skip it.