Chatama (talk) · CC BY-SA 3.0
Kawayu Onsen
川湯温泉
Hokkaido · 100 Onsen to Know Japan — No. 2
AcidicSulfurIronSulfateChloride
Water acidic enough to corrode a nail runs as an open river through the middle of town.
Spring type (therapeutic classes)
Iron spring
Contains iron, which oxidises on contact with air and turns the water reddish-brown.
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Photo information
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Chatama (talk) · CC BY-SA 3.0
Calistemon · CC BY-SA 4.0
Noboribetsu Onsen
登別温泉
Hokkaido · 100 Onsen to Know Japan — No. 1
SulfurChlorideSulfateIronAcidicBicarbonateRadon
Ten thousand tonnes of water a day and nine kinds of spring, all boiling out of a single valley called Hell.
おにく · CC0
Furofushi Onsen
黄金崎不老不死温泉
Aomori · 100 Onsen to Know Japan — No. 12
ChlorideIron
A rust-brown pool cut into the rocks at the very edge of the Sea of Japan, with nothing between you and the sunset.
Yas Nakano · CC BY-SA 3.0
Sukawa Onsen
須川温泉
Iwate · 100 Onsen to Know Japan — No. 16
IronSulfurSulfateChlorideAcidic
At 1,126 metres on the flank of Mt Kurikoma, 6,000 litres a minute of strongly acidic water pour into Dainichi-yu, an open-air bath big enough for fifty.
Zhaitengli · CC BY 4.0
Naruko Onsen
鳴子温泉
Miyagi · 100 Onsen to Know Japan — No. 18
SulfurSulfateBicarbonateChlorideSimpleIronAcidic
Seven of Japan's ten official spring types in one valley. The communal Takinoyu by the station costs 300 yen, and the town lends you wooden geta to clatter from bath to bath.
663highland · CC BY-SA 4.0
Arima Onsen
有馬温泉
Hyogo · 100 Onsen to Know Japan — No. 62
IronChlorideCO₂Radon
Salt and iron thicker than seawater in the 'gold' spring, carbon dioxide and radon in the 'silver': two utterly different waters rise five minutes' walk apart.
Soren Bradley · CC BY 4.0
Soica2001 (talk) · Public domain
TAMAGO · CC BY-SA 3.0
textex · CC BY-SA 3.0
Douglas P Perkins (Douglaspperkins (talk)) · CC BY 3.0
Soren Bradley · CC BY 4.0
Σ64 · CC BY 3.0
SpringField1967 · CC BY-SA 3.0
Komoro no kaze · CC BY-SA 4.0
photo: Qurren (トーク) Taken with Canon IXY 430F (Digital IXUS 245 HS) · CC BY-SA 3.0
Soren Bradley with Topographic - NASA Shuttle Radar Topography Mission (SRTM3) Admin ,Hillside - Geospatial Information Authority of Japan , https://nlftp.mlit. · CC BY 4.0
Douggers · CC BY 3.0
運動会プロテインパワー · CC BY-SA 4.0
運動会プロテインパワー · CC BY-SA 4.0
Goki (talk) · CC BY-SA 3.0
Nankou Oronain (as36… · CC BY-SA 3.0
OS6 · CC BY-SA 3.0
Lumi iori · CC BY-SA 4.0