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Easternmost Wild Natural Hot Spring Place in Japanese -Aidomari Onsen in Rausu, Shiretoko Peninsula-

July 12th, 2014

Aidomari Onsen (相泊温泉) is the Japanese's easternmost hot spring place in Rausu town located in the Shiretoko peninsula and was discovered in 1899. This is a public bath for local fisherman, it is famous as wild natural onsen on the seashore, so many tourists visit. A bathtub seems to bury itself underwater by a storm. It is really great at the mercy of nature.

Entrance of Aidomari Onsen
Aidomari Onsen in Rausu
Bath Is Covered with Blue Sheet in Summer and Bath Is Divided into Men and Women
Aidomari Onsen in Rausu
Bath Is Covered with Blue Sheet in Summer
Aidomari Onsen in Rausu

There is only 1 open-air bath. Hot springs gush out from the bottom of the bath. At first, the open-air bath is mixed bathing, but a hut is built in about July and is changed to bathhouse segregated to indoor bath for men and women.

Look of Open-air Bath
Aidomari Onsen in Rausu
Look of Open-air Bath
Aidomari Onsen in Rausu
View from Open-air Bath
Aidomari Onsen in Rausu

The hot springs are salty hot spring, and are clear and colorless and have tastless and no smell. I supposed that the hot springs were salty, but I licked the hot springs, strangely enough it was not salty. Because there are no shower and amenity goods, Let's take a bath after pouring the hot springs on your body to washed off your sweat and dirt. In addition, bathers can take a bath in their swimsuits, but there is not a dressing room. There is a restroom.

Aidomari Onsen in Rausu

Atmosphere of Aidomari Onsen Can Be Watched on Youtube

Movie of Aidomari Onsen

Types of Hot Springs Salty hot springs (Type: Weak alkaline, Osmotic Pressure: -, Spring Temperature Type: Warm spring)
Water temperature of Hot Spring Source 75 C
ph 6.1
Indications Cut, Hemorrhoids, Burn, Neuralgia, Backache, Chronic rheumatism, Chronic dermatopathia, Anemia
Contraindications Acute disease(when there is the heat in particular), Active tuberculosis, Malignant tumor, Severe heart disease, Respiratory failure, Renal insufficiency, Hemorrhagic disease, High anemia, Other diseases during condition of a patient progress generally
Indications of drinking Not drinking
Facilities Open-air bath(1)
Entrance fee to the bath facility Free of charge
Business hours From Sunrise to Sunset
Regular closing day From October to April
Parking lot A parking lot is provided (6 cars)
Telephone number +81-153-87-2126
Home page Home page is here
Mapcode 974 353 767*37


Refer to following websites for the accommodations in the south side of the Shiretoko Peninsula.

Rausu Daiichi Hotel(らうす第一ホテル)
Hotel Mine-no-Yu(ホテル峰の湯)    
Rausu-no-Yado Marumi(羅臼の宿 まるみ)  
Hotel Sakaeya(ホテル栄屋)    
Business Hotel Isaribi(ビジネスホテル漁火)      
Pension Rausukl(ペンションラウスクル)      
Takashimaya Ryokan(高島屋旅館)      
Chishimaya Ryokan(千島屋旅館)      
Minshuku Honma(民宿本間)      
Minshuku Nomura(民宿野むら)      
Minshuku Yonemaru(民宿よね丸)      
Minshuku Kannari(民宿かんなり)      
Minshuku Washi-no-Yado(民宿鷲の宿)      
Minshuku Ippukudozo(民宿いっぷくどうぞ)      
Rider House Okigaruya(ライダーハウス お気軽屋)      

A page of Secret Onsen of Hokkaido is here

Secret Onsen of Hokkaido

A page of Shiretoko National Park is here

Shiretoko National Park