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Oshino Hot Spring (Oshino Onsen)
A natural hot spring classified as a sodium chloride and bicarbonate spring. It is weakly alkaline with a pH of 8.2 and is reputed as a 'beauty' hot spring that leaves skin smooth.
JAPAN ONSEN COLLECTION
When your heart unwinds,
The Finest Moment
Japan's Finest Onsen & Sauna
43 Extraordinary Destinations
43
A curator who has visited over 300 facilities nationwide handpicks 43 exceptional ones they wholeheartedly recommend. The only guidebook that deeply explores the allure of onsen and sauna—plus culture and etiquette.