JAPAN'S FINEST ONSEN & SAUNA
The Finest Onsen & Sauna in Japan
57 SELECTIONS
Most of what we surveyed never even made it onto this site. This book is a further cut from what did. Our editor bathed in every onsen and sauna in it, and wrote only what they confirmed on the ground.

JAPANESE ONSEN & SAUNA GUIDE
Japanese onsen and sauna have a long history and unique culture. From spring types and benefits to proper etiquette — the more you learn, the richer your journey becomes.
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Articles to learn the basics, culture, and etiquette of hot springs and sauna
View articles →An article that conveys the wonderful qualities and appeal of Japanese hot springs and saunas
View articles →Articles scientifically explaining the health benefits of hot springs and saunas
View articles →Deep dive into onsen spring types, components, and scientific knowledge
View articles →Explore culture, society, and special themes of onsen and sauna
View articles →An article offering advice to help you have an exceptional experience at Japanese onsen and sauna facilities
View articles →Why do Japanese hot springs require nudity? Learn the hygiene and gender-separated design behind the rule, plus where swimsuits are allowed and options for shy first-timers.
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Jun 28, 2026