
Find Saunas & Onsen Across Japan
Influenced by my father, I've been a sauna enthusiast since elementary school. Now visiting local saunas daily on weekdays and exploring facilities nationwide on weekends, I'm a professional in Japanese onsen and sauna culture. This site features only the truly exceptional places I've personally experienced and carefully selected destinations I'm excited to visit next. I also write original experience stories from my visits. Available in 10 languages worldwide, find your perfect onsen and sauna experience in Japan.
Latest Stories
Detailed reports from actually visited saunas and onsen

Natural Hot Spring Ginto Tojishuraku
A natural hot spring that leads to deep relaxation unconsciously

Sanda Natural Hot Spring Kotobuki-no-Yu
Everything from the hot spring, sauna, cold plunge bath, to the atmosphere is exquisite

ZIKKAI SPA
A spa facility truly deserving of the name 'oasis'

kobatoisa cafe&sauna
Enjoy the Wood-Fired Sauna and Natural Underground Water in Mimasaka City

Gokuraku no Sato Ebisu no Yu Kawabe Branch
A Super Sento Loved by Locals

sauna kolme kylä
A meticulously crafted otherworldly sauna
Monthly Ranking
Check this month's popular facilities
2025年10月
TOP 10
In October 2025, we present a ranking of the most memorable hot spring and sauna facilities in Japan that we actually visited.
Yuya FUROBAKKA
Osaka Sauna DESSE
Spa Alps
2025年9月
TOP 10
Introducing a ranking of particularly memorable hot spring and sauna facilities visited in September 2025.
Ogaki Sauna
Kobe Sauna & Spa
Megumi no Yu
2025年8月
TOP 10
In August 2025, we present a ranking of particularly memorable hot spring and sauna facilities that we actually visited.
Arima Kaido Onsen Suzuran no Yu
Iyo Healing Place Kisuke no Yu
Safi Spa Maiko