Tanken
Find Your Perfect Hot Spring
Discover your ideal hot spring experience from hidden gems to popular destinations across Japan
Secluded Onsen
Secluded Hot Springs & Rankings
Find Japan's Hidden Onsen
The definition of hitou, a map, and rankings by our original seclusion score — all on one page
Blog
Blog Articles
Hot Spring Stories & Guides
Explore articles about hot spring destinations, travel tips, and everything onsen
Adventure
Hidden Onsen by Region
Secret Springs by Region
Discover secret hot springs and unique regional onsen across Japan
Latest Blogs
See more
Hakone Onsen Day Trip: 5 Historic Hot Springs You Can Bathe In
7/26/2026
10 Hidden Hot Springs in Shizuoka: From the Izu Peninsula to the Southern Alps
7/21/2026
10 Best Hidden & Notable Hot Springs in Mie Prefecture — From the Pillow Book's Fabled Spring to the Mine-Trolley Onsen of Oku-Kumano
7/21/2026
Okinawa Hot Springs: 7 Fossil-Seawater Baths on a Volcano-Free Island
7/20/2026
Kagawa Hot Springs: 6 Honest Picks Sorted by How the Water Is Run
7/20/2026
