SpringsAtlas
Natural hot spring pool with mountain backdrop

Natural Hot Springs Directory

Find your perfect soak

The world's most detailed hot spring directory — temperatures, transit routes, history and more.

122

Springs listed

8

Regions covered

63°C

Average temperature

9

Free entry

Curated selections

Editor's picks

View all springs →
Dogo Onsen, MatsuyamaEditor's pick55°C

Dogo Onsen

Matsuyama · Shikoku

One of Japan's oldest hot springs, with a recorded history going back over 1,300 years and oral traditions reaching much further. The iconic Dogo Onsen Honkan, a three-storey wooden bathhouse completed in 1894, is said to have inspired the bathhouse in Studio Ghibli's Spirited Away. The gentle alkaline waters are known for their skin-softening properties.

3,000-year historySpirited Away inspirationNational Important Cultural PropertySkin-softening alkaline water

4.5· 5,200 reviewsvia Google

Kusatsu Onsen, KusatsuFree entry95°C

Kusatsu Onsen

Kusatsu · Kanto

One of Japan's most celebrated onsen towns, set at 1,200 meters in the mountains of Gunma Prefecture. The spring output here exceeds 32,000 liters per minute, making it the highest in Japan. The strongly acidic sulfur waters are legendary for their skin-healing properties. Twice a day in the town square, staff perform yumomi: cooling the scalding water with long wooden paddles while singing traditional songs.

Highest spring output in JapanDaily yumomi ritualStrongly acidic sulfur waterFree public bathhouses

4.5· 4,500 reviewsvia Google

Tsuru-no-yu Onsen, Nyuto OnsenEditor's pick62°C

Tsuru-no-yu Onsen

Nyuto Onsen · Tohoku

The oldest of Nyuto's seven inns, sitting deep in a beech forest in Akita Prefecture. The large outdoor mixed-bathing pool is filled with opaque, milky-white sulfurous water. It is widely considered the most beautiful onsen scene in Japan. You come here to disappear for a while.

Milky-white outdoor rotenburoMixed-gender konyoku bathingNational cultural propertyFour distinct spring types

4.7· 3,214 reviewsvia Google

The SpringsAtlas way

Soak with confidence

Find a spring

Search and filter by location, temperature, mineral type, and bathing style. Every listing is deeply researched with sourced data.

Get there

Shinkansen connections, local bus routes, and walking directions from major cities — so you always know exactly how to arrive.

Soak in confidence

Accuracy scores, last-verified dates, and source attribution mean you never turn up to find a spring closed or changed.

New springs, guides & trip ideas

Join the SpringsAtlas newsletter. No spam, unsubscribe any time. Privacy Policy.