Soak first. Ask questions later. The ancient, mineral-rich ritual of Japanese onsens.
Picture it: A misty mountainside. The scent of sulphur curls through crisp air. A heron, injured and limping, dips into a hot spring—and walks away healed. Locals take note. The onsen is born.
The white heron has become something of an unofficial mascot for the onsen—graceful, quiet, and drawn instinctively to the healing power of hot springs. Some of Japan’s most famous onsens, including Dogo Onsen and Yuda Onsen, trace their discovery back to this elegant bird and its miraculous recovery. The story lives on not just in legend, but in the statues, branding, and symbolism around many historic bathhouses.
Welcome to the origin story of Japan’s most enduring wellness ritual. Equal parts mythology and mineral science, these natural geothermal springs have been bubbling beneath Japanese soil—and skin—for over 3,000 years.
“Bathing is like a prayer. Soaking is not to be rushed.” ~ Sachiko Tada, Japanese acupuncturist and herbalist
Samurai, Sultans, and Soaking in the Edo Era
Onsens were once the soak of choice for emperors and warriors. After a long day of wielding swords or managing empires, nothing beat a quiet moment in volcanic mineral water. Call it the original recovery protocol.
By the Edo period, onsens had gone mainstream. Towns formed around them. Couples bathed under the stars. Relaxation met romance. Wellness met community. And somewhere along the way, steamy silence became a cultural art form.
Minerals With Benefits
Onsens are also mineral cocktails. Think sulphur, iron, calcium, magnesium…each spring with its own colour, scent, and skin-softening charm.
Depending on what’s in the water, onsens are known to:
Bonus: some are red, green, even black. All of them are meant to be felt deeply, not rushed.
Tattoos? It’s Complicated.
Traditionally, tattoos in Japan were associated with organized crime, which meant many onsens had a strict no-ink policy. But times are changing. Some now welcome tattooed guests, especially at more modern or international-facing resorts. If in doubt: ask, or book a private bath.
“When I soak with someone, I feel like we are connected to the universe. We speak in small voices, with open minds, about any topic.” ~ Sachiko Tada
Stillness Is the Point
Soaking in an onsen isn’t about checking out. It’s about dropping in—to heat, to silence, to something ancient and deeply human.
It’s the ritual of doing nothing, done with great intention.
Planning a Visit?
Japan is home to over 20,000 onsens and 3,000 resort towns, each with its own unique spring water signature. From snowy Hokkaido to the coastal cliffs of Kyushu, you’ll find onsens that blur the line between landscape and ritual.
When in doubt, take a cue from the emperors. Or the heron. Get in. Go quiet. Let the minerals work their magic.
This spring in Calgary, Alberta, thermae eleven opens to the elements—an outdoor ritual of contrast, calm, and quiet courage. Subscribers receive priority access to reservations. Sign up below.
