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Yukai Resort Unzen Toyokan

大江戸温泉物語 雲仙東洋館

Lodging
Unzen Onsen
Kyushu & Okinawa·Nagasaki
+81 50-3615-3456ooedoonsen.jp

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

Cover required

雲仙東洋館

Unzen Toyokan
沃
Iodine-bearing
Classification

Calcium-Sodium Iodide spring

An iodine-bearing spring defined by an unusually high iodide content — water that yellows on contact with air and carries a faint yellow-brown tint at the source. Weakly alkaline and soft on the skin, it shows a faint rotten-egg note of hydrogen sulfide and a slightly salty tang on the lips. Modest free CO2 and metasilicic acid round out a gentle, smooth feel. Iodine-rich waters are traditionally noted in connection with skin conditions, and the cert flags hyperthyroidism as a drinking caution for this water family.

Source temperature
44.7°C
 
Tonicity
0.23g/kg
Hypotonic
Free CO₂
108mg/kg
Low
Free H₂S
0.10mg/kg
Low
Radon
4.81Bq/kg
Low
Color
pale yellow-brown
Taste
slightly salty
Odor
faint hydrogen sulfide
Highlights
  • Iodine-rich

環境調査株式会社

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SM
Sergey M
2 years ago

Yukai Resort Unzen Toyokan, Unzen (Pt.2 - upper baths) From there you can transfer to another elevator on a different floor and get to 5F. There are two baths: one indoor behind glass and a second outdoor one on a balcony (accessed through the indoor one). The view of the buildings is a bit worn (but for me that actually adds to the atmosphere of this place) and there's a clear view of water and mountains. The water feels similar to the lower bath. Likewise had it all to myself. Also highly recommended.

SM
Sergey M
2 years ago

Yukai Resort Unzen Toyokan, Unzen (Pt.1 - entrance and lower bath) A relatively modern ryokan with lots of rooms. Went in the morning - they said day-use starts from 14:00, and both baths are available. 1,030 yen for entry and large towel rental. The elevator system is a bit confusing, but they give you a printed map. Went to the lower one on B1F - a big area with about 20 shower stations and a great view, with a wooden platform in the middle of the bath. The water is milky blue (but not super saturated in color), not much smell, standard water temperature. Had the whole place to myself the entire time. Highly recommend.