An alkaline simple sulfur cold-mineral spring: a faint hydrogen sulfide note drifts at the source and fine white particles float in the otherwise colorless, clear water. The alkaline pH gives it the soft, slippery feel of Japan's beauty-water family. At 17.5 °C it is a cold-mineral source (< 25 °C) reheated for bathing, and with only 651 mg/kg of dissolved solids the water sits light on the body.
pH
9.40
Alkaline
Source temperature
17.5°C
Cold mineral
Tonicity
0.65g/kg
Hypotonic
Flow rate
11.4L/min
Low
Radon
8.00Bq/kg
Low
色
Color
colorless and clear, with white floating particles
味
Taste
tasteless
香
Odor
faint hydrogen sulfide
Highlights
Top-decile alkaline
Cold mineral
Analyzed Jan 13, 2022·株式会社総合水研究所·Cert no. SP220004
601. Fudouguchikan, Inunakiyama Onsen, Osaka ★★
Stayed overnight. There's a higaeri onsen for 900 yen, from 11:00 to 21:00. Various higaeri plans with meals available. Guests can also book a private open-air bath for 2750 yen (didn't take it).
The ryokan is in the small village of Inunakiyama Onsen, 30 minutes by car and 40 minutes by public transport from Kansai Airport. Had dinner and breakfast, both were good. Dinner — kaiseki served in the room, lots of food. Breakfast — Japanese style with extra vegetables, carrot juice, and yogurt available (the vegetables and juice were very tasty). In June there was an evening event to go see fireflies (didn't attend). Room is good, but a bit stuffy without the AC on.
1. Outdoor semi-enclosed stone bath with a view of the forest and river. Sitting the view fades, but standing it's gorgeous. There's a wooden railing that blocks some of the view when you sit in the bath. But it's convenient for standing at the edge — you can lean on it. Clear water with a soapy feel. Temperature around 42°C.
2. Indoor bath. Clear water with a soapy feel. Temperature around 42.5°C. Breathing inside is fine.
Good place, recommended for a visit. Inunakiyama Onsen overall can be combined with an overnight stay after arriving or before departing from KIX. The village is small, but a full ryokan experience, neighboring higaeri spots, and a bit of walking around are enough to enjoy a pleasant time and relax in an onsen village.
12.06.2025 13.06.2025