If you think hot springs in Japan are just fancy places to dip your toes in and unwind, think again. Also known as “onsen”, Japanese hot springs are way more than just a bath. They’re a centuries-old cultural ritual for healing, relaxation, and reconnecting with yourself. Even today, locals and visitors enjoy sinking into geothermal waters that have been revered for their rejuvenating powers since ancient times.
From hidden mountain gems to luxurious ryokans (traditional Japanese inns), hot springs in Japan offer an escape to peace, where warm water and minerals soothe both body and mind.
For those chasing wellness, looking to snap some Instagram-worthy moments, or simply immersing themselves in Japan’s rich history, indulging in a hot spring is a cool way to enjoy the calmer, slower things in life. Get to know what makes a Japanese hot spring the ultimate reset button—and how it’s different from your typical public bath.
What is a Japanese Hot Spring?
A hot spring in Japan is usually called an onsen, which refers to a natural spring that is geothermally heated and often contains minerals that are said to have therapeutic benefits. Unlike a sento (a public bathhouse), which may be artificially heated, an onsen is required to meet specific criteria: it must be naturally heated to at least 25°C and contain distinct minerals. Onsen are pillars of Japanese culture as a place for relaxation, healing, and spiritual renewal.
The word ‘onsen’ itself is tied to centuries-old practices of health and wellness. Toji, also commonly referred to as ‘spring healing’, has been a tradition in Japan for thousands of years. People would visit these thermal waters to restore their bodies and minds, often alongside monks or spiritual healers. Even today, visiting an onsen is considered a method to cleanse both physically and spiritually.
Did you know toji is also the word used when eggs are simmered in dashi? Learn to make your own tamago toji in this katsudon Japanese cooking class!
The 10 Best Hot Spring Destinations in Japan
1. Hakone Onsen (Kanagawa Prefecture)
A classic favorite, Hakone Onsen is the perfect blend of traditional charm and modern relaxation. Known for its wide variety of onsens, from luxurious ryokans with private baths to open-air baths offering breathtaking mountain views, it’s a place where every soak feels like a serene escape. The soothing mineral waters here are said to help with everything from muscle aches to skin rejuvenation, making it the ultimate wellness retreat.
What truly sets Hakone apart, aside from its relaxing hot springs, is its proximity to Tokyo—just an hour away—making it the perfect destination for a day trip or a weekend getaway. After unwinding in the healing waters, take a stroll through the charming town and grab a bite to eat.
The area is known for cozy cafés offering local delicacies and restaurants with sweeping views of Lake Ashi. Hakone is a food lover’s paradise as well, famous for its black onsen eggs, a Hakone-original Japan hot spring treat. Soak, relax, and then treat your taste buds to something special.
Best for: Convenience, luxury, and scenic views.
2. Beppu Onsen (Oita Prefecture)
Beppu Onsen, also known as Beppu Hatto, is a popular hot spring haven made up of eight distinct towns, each with its own character. Steeped in history, legend has it that in the 8th century, the gods used Beppu’s healing waters to cure illness, setting the stage for its spa magic. During the Kamakura Period, samurai stayed here to speed up recovery. Today, locals and visitors flock to Beppu for the ultimate body-and-mind reset.
Home to the famous “Hells of Beppu”, a collection of visually striking hot spring attractions, this onsen hub is one of Japan’s most iconic. With over 3,000 hot spring sources (more than 10% of Japan’s total) Beppu offers waters that range from soothing sodium bicarbonate baths to chloride-rich ones for fatigue. Some onsens even let you drink the spring water, said to help conditions like gout and diabetes. For a bit of nostalgia, check out Ekimae-koto Onsen, styled like a European villa. If you're feeling adventurous, dive into a mud bath at Hamawaki Onsen, where the therapeutic mud is as smooth as it is healing.
Best for: Adventure seekers and history buffs.
3. Kusatsu Onsen (Gunma Prefecture)
Kusatsu Onsen is a Japanese hot spring legend, famous for its high-quality waters that locals claim can cure just about anything (except maybe lovesickness)! Situated 1,200 meters above sea level in the mountains of Gunma Prefecture, Kusatsu is a year-round getaway. In the winter, you can hit the slopes for skiing, and in the warmer months, explore hiking trails before slipping into the rejuvenating baths.
At the heart of Kusatsu is the Yubatake—literally the “hot water field”—a massive geothermal spring that sends steam billowing into the air. Trust us, you won’t have any trouble locating it; the distinct aroma will lead you right to it. With temperatures around 55°C, you might feel like you’re stepping into a giant sous vide pot, but the water’s high acidity is said to do wonders for your skin! This has made it a favorite among historical figures like the Tokugawa shoguns. Also, don’t miss the yumomi performance at Netsunoyu, where workers cool the water with rhythmic wooden planks and a folk song.
Best for: Wellness enthusiasts
4. Ginzan Onsen (Yamagata Prefecture)
Step back in time at Ginzan Onsen, where the charm of classical Japan comes to life. This picturesque town is dotted with traditional wooden hot spring inns lining the Ginzan River, and when the gas street lamps light up at night, it feels like walking through a scene from a Ghibli movie. In fact, this nostalgic beauty was the setting for the iconic TV drama Oshin in the ‘80s, adding even more layers to its cinematic allure.
Ginzan is perfect for a leisurely stroll, with colorful Kote-e art decorating the walls (a traditional Japanese art form consisting of three-dimensional plaster relief murals) and snowflake designs on the road tiles. For an extra cozy touch, dip your feet into the Warashiyu footbaths, where hot spring water flows straight from the source. Rent a Taisho-era costume and step into the past as you explore charming cafés, eateries, and gift shops. In winter, the town’s snow-covered streets are a photographer’s dream, especially with a warm onsen soak afterward.
Best for: History lovers, photographers, and couples.
5. Ibusuki Onsen (Kagoshima Prefecture)
Ibusuki Onsen is not your typical spa getaway. Known for its sunamushi (sand) baths, where hot sand is shoveled over your body up to your neck, this seaside destination offers an unparalleled detoxifying treatment.
Lounge on the beach in a yukata (a casual kimono-like garment) while being semi-submerged in 50-55°C sand that draws out toxins, boosts circulation, and leaves you feeling like a brand-new person. After a few minutes of sweating it out, head to the traditional hot spring baths to rinse off and soak in healing waters.
Beyond the baths, Ibusuki is also home to the mysterious Chiringashima Island, accessible only during low tide between October and March. This serene island has a reputation for romance, inviting you to unwind in its quiet beauty. Here, the gentle sea breeze and panoramic views create a peaceful atmosphere—ideal for moments that feel made just for you. For something even more enchanting, slip into the infinity baths at Healthy Land Tamatebako Onsen on the island, where the stunning views of Mt. Kaimon melt away the world around you.
Best for: Travelers in search of a unique hot sand experience.
6. Gero Onsen (Gifu Prefecture)
For centuries, Gero Onsen has been the ultimate escape for people seeking relaxation with a side of history. Famous for hosting iconic visitors like Charlie Chaplin (yes, there's a statue!), this town has earned its place as one of Japan’s most beloved hot spring spots. Whether you're soaking in the mineral-rich waters or indulging in delicious local meals brought straight to your room, Gero is all about slipping into a slower, more peaceful rhythm. It’s also about frog puns, if that’s more your style.
The energy here is simple: check in, unwind, and let the water do its magic. Don’t have time for an overnight stay? No worries—Gero offers three public baths and a free open-air bath by Gero Bridge, where you can relax and enjoy the view.
Explore Onsenji Temple for gorgeous views, or stroll through the Gassho Village Open Air Museum, where traditional architecture meets artisan demonstrations. If you’re in town for the Ryujin Fire Festival, you're in for a treat: geisha dances, music, and fireworks make this the town's hottest event of the year!
Best for: A relaxing, traditional hot spring town with a mix of public and private baths. Amphibian lovers.
7. Noboribetsu Onsen (Hokkaido Prefecture)
Noboribetsu Onsen is a true natural wonder where each bath tells its own healing story. Nestled in the heart of Jigokudani (Hell Valley), these mineral-rich waters bubble up from deep within the earth, creating a remarkable variety of baths. With nine different types of water, from milky sulfur springs that soften the skin to salt and mineral-infused pools with unique health benefits, it’s an onsen lover's dream come true.
Known as one of Japan’s top ten onsen destinations, Noboribetsu offers more than just healing waters. The area is a haven for relaxation, with day-use bathing options at numerous hotels, perfect for a spontaneous soak. After your bath, stroll through Jigokudani’s primeval forest, where the warm earth nurtures ancient trees, or wander the charming town for local souvenirs. For the ultimate experience, spend the night in a cozy ryokan and enjoy a tranquil, restorative escape.
Best for: Nature lovers, those interested in volcanic activity, and cold-weather hot spring seekers.
8. Kinosaki Onsen (Hyogo Prefecture)
Nestled along a willow-lined river and kissed by the Sea of Japan, Kinosaki Onsen is the epitome of old-world charm. With its roots tracing back to the 8th century, this town has perfected the art of onsen culture across centuries. Onsen-hopping—strolling through town in yukata and geta, visiting the seven different public baths, each with its own unique vibe and healing powers – is one of the best ways to experience Kinosaki’s Japanese hot spring magic.
Unlike most onsen resorts in Japan, Kinosaki is mostly welcoming to tattoos of all sizes; no need to cover them up. Whether you’re sporting some ink or not, you can fully enjoy the experience without worry.
As the evening sets in, the town comes alive with nostalgic charm. Wander the quaint streets, the flickering lanterns casting a soft glow as you soak in the peaceful atmosphere. Whether you're enjoying a quiet soak, discovering an arcade, or simply taking in the river views, Kinosaki offers an unforgettable blend of relaxation and a step back in time.
Best for: Guests with tattoos. Those wanting to explore multiple bathhouses in one destination.
9. Yufuin Onsen (Oita Prefecture)
Set in a tranquil river basin and surrounded by towering mountains, Yufuin Onsen offers the perfect blend of natural beauty, art, and relaxation. A peaceful alternative to the bustling Beppu, this charming town invites visitors to slow down and soak in its serene atmosphere. The main street is lined with stylish cafés, quirky boutiques, and art museums, giving it a chic, artsy vibe that feels more like an immersive experience than a typical onsen town.
Dominating the skyline is Mount Yufu, with the dramatic twin peaks that guard over the town, offering some of the most breathtaking views in Japan. Venture a little farther, and you’ll find rice paddies and traditional farmhouses that give this rural town an authentic, peaceful ambiance.
In Yufuin, ryokan and hotels are spread out, allowing for a relaxed, spacious atmosphere. Many open their baths to the public during the day, letting you indulge in the mineral-rich waters at your own pace. Don’t miss a stroll to Lake Kinrinko, a quiet haven at the end of the main street, where scenic walking paths, cafés, and a small shrine create the perfect place for reflection and relaxation.
Whether you're soaking in a luxurious bath, exploring local galleries, munching on its well-known spring fruit (strawberries or citrus fruits, anyone?), or simply basking in the peaceful charm of the town, Yufuin offers an experience that combines timeless beauty with modern serenity.
Best for: Travelers seeking a mix of relaxation and culture in a beautiful rural setting.
10. Zao Onsen (Miyagi Prefecture)
Cradled between the peaks of Yamagata and Miyagi, Zao Onsen is where nature and relaxation come together in perfect harmony. With its famous mineral-rich hot springs, this onsen has everything you need to melt away fatigue and leave you feeling refreshed. The healing waters (rich in sulfur, aluminum, and iron) have been known for their beautifying effects since 110 AD, making Zao both a place to truly rejuvenate your body and soul.
In winter, Zao transforms into a ski haven, but the magic doesn’t stop when the snow melts. During the warmer months, the area offers hiking, cycling, and forest bathing. These activities are wonderful ways to reconnect with nature before sinking into a peaceful hot spring soak. If you visit in winter, be sure to experience the snow-viewing baths where the serene sight of falling snow makes every moment feel even more tranquil.
From outdoor adventures to simply enjoying the ultimate soak, Zao Onsen offers a cozy, healing escape that lets you unwind and recharge in style.
Best for: Nature lovers, winter sports enthusiasts, and those wanting to enjoy both hot springs and outdoor adventures.
Essential Onsen Etiquette and Tips
When visiting an onsen, there are a few cultural rules to keep in mind:
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Clean Yourself First: Before entering the communal baths, you must wash and rinse your body thoroughly at the provided shower stations. This is a sign of respect for other bathers.
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No Tattoos (in some places): While tattoos are becoming more accepted in Japan, some onsens may have policies against them. It’s always a good idea to check in advance or look for tattoo-friendly onsens.
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Nudity: Onsens are usually gender-segregated, and bathing is done in the nude. While this can be intimidating for first-timers, it’s a long-standing practice rooted in the culture of relaxation and spiritual renewal.
Hot Spring, Cool Culture
While Japan may be iconic for nationwide food tours, delectable spring food, and ethereal cherry blossoms, it’s pretty evident that there is so much more to this cool culture than that, and hot springs are definitely high up on that list!
Whether you're soaking in the sulfur-rich waters of Kusatsu or relaxing in the historic ryokan of Ginzan, Japan's onsens offer an unparalleled experience that blends relaxation, culture, and wellness. These 10 destinations are just the beginning of your onsen journey, and each one promises something special. So, pack your bathing suit (or don’t!) and get ready to immerse yourself in the true meaning of onsen culture.



















