Imbued with natural salts and minerals and tapped at depths of over 700m from geothermally heated hot springs, enjoy one of Japan’s most famed and revered traditions amidst sumptuous surroundings.

Offering AYA Niseko guests luxurious public indoor and outdoor onsen and private family baths, feel your tension melt away as the volcanically-heated spring-water massages and soothes you to the core.

  • Women's/Men's indoor & outdoor baths
  • Private Family baths
  • Sauna & wash rooms

Opening Times

Public OnsenOpen 7 days a week
6:00 - 9:00, 13:00 - 00:00
(Last entry 23:00)
Private Family Onsen*Open 7 days a week
13:30 - 22:00
(Last entry 21:00)

Please note that Public and Private Family Onsen are only available to overnight guests.

*Private Family Onsen can be reserved by contacting the reception desk the day of use (Extra reservation fee applies.3,000 JPY / per hour)

・ As a precautionary measure to Covid-19, our sauna in the public onsen has been temporarily closed. We apologize for any inconvenience and thank you for your cooperation. (updated on April 16, 2020)
⇒It is reopened from 1st July.

Please kindly follow these guidelines;
・Please keep a social distance of at least one meter.
・Please take a shower before entering the sauna.
・Please avoid unnecessary talking in the sauna.


If you require any assistance or would like to know more about the AYA Onsen, please do not hesitate to contact us directly.

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