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The Ultimate Guide to Japanese Onsens

Tradition, Etiquette, and the Best Soaks in the Country

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Kinosaki Onsen

Rivers Made of HotSpring Water

Step-by-Step Experience

01
Rent a Traditional Japanese Dress (Yukata)

There are rental services for traditional Japanese dresses called (Yukata) for both men and women. You can rent for a few hours and enjoy the traditional Japanese onsen town while wearing clothes that match the vibes.

02
The Seven Bathhouses of Kinosaki

Kinosaki Onsen Town is known for its seven bathhouses which are: Jizo-yu, Yanagi-yu, Ichino-yu, Goshono-yu, Mandara-yu, and Kono-yu ” (Yu” means hot water or hotspring).

03
Kinosaki Onsen Motoyu and Boiled Eggs

”Motoyu” means ”source of water.” This place is the origin of Kinosaki Onsen’s hot water and has a cafe where you can buy eggs to dip into the hot water to make natural boiled eggs. There is also a footbath nearby while you wait for them to boil.

04
Onsen-ji Temple

In the old days, people from all over Japan would come to Kinosaki to heal their ailments. It was mandatory to pray at this buddhist temple to attain a ladle that was used as a way for people to show that they had been granted permission to bathe in these onsens. This is no longer necessary in the mdoern era but the temple still has canes from long ago where people who were cured of their ailments after bathing left their no-longer needed canes.

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Onsen Manners

Tattoo Friendly! Most of the seven public bathhouses in Kinosaki are famously welcoming to guests with tattoos, which is rare in more traditional parts of Japan. For ryokans and hotsprings other than the famous 7, you should make sure to check beforehand.

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Kusatsu Onsen

The Powerful Acidic Waters of Gunma

Step-by-Step Experience

01
Yubatake (Hot Water Field)

Witness the center of the town where 4,000 liters of acidic water gush per minute. The water flows through wooden cooling chutes to lower the temperature naturally without diluting its high mineral content with cold tap water.

02
Yumomi Performance

Watch the 'Yumomi' at the Netsu-no-yu house. This traditional method involves local women singing folk songs while stirring the 50°C water with large wooden paddles to cool it down while maintaining its healing properties.

03
Sainokawara Park

Walk through this volcanic park where hot water literally flows as a river. Follow the path to the end to find one of Japan's largest outdoor baths (rotenburo), where you can soak while surrounded by steaming forest landscapes.

04
Extreme Acidity Test

Kusatsu water is so acidic it can dissolve a steel nail in a week. When soaking, avoid getting water in your eyes or mouth, and be sure to rinse off your jewelry, as the minerals will oxidize silver and copper instantly.

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Onsen Manners

The water here is incredibly medicinal but harsh. If you have sensitive skin, it is highly recommended to rinse with fresh water after your soak.

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Beppu 'Hells'

The Steaming Landscape of Kyushu

Step-by-Step Experience

01
Umi Jigoku (Sea Hell)

Visit the most beautiful of the 'Seven Hells.' This pond is a stunning cobalt blue but reaches 98°C. While you cannot bathe here, the steam is used to heat nearby greenhouses where tropical lilies grow year-round.

02
Jigoku Mushi (Hell Steaming)

Try 'Jigoku Mushi' cooking for lunch. You rent a steam-pot powered by natural geothermal vents and cook vegetables, seafood, and dim sum yourself. It's a healthy, salt-infused meal cooked purely by the earth's breath.

03
Takegawara Sand Bath

Visit the historic Takegawara Onsen, built in 1879. Instead of water, you are buried up to your neck in hot volcanic sand. The weight and heat stimulate circulation and provide a unique 'heavy' detox experience.

04
Blood Pond Hell

Conclude at 'Chinoike Jigoku,' a pond naturally colored bright red by iron oxide and magnesium. It is the oldest recorded 'hell' in Japan, dating back over 1,300 years in ancient Buddhist texts.

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Onsen Manners

Buy the 'Jigoku Meguri' (Hell Tour) combo ticket at the first station to save over 2,000 yen compared to buying individual entry tickets for each site.

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Arima Onsen

The Golden and Silver Springs of Kobe

Step-by-Step Experience

01
Kinsen (Gold Spring)

Experience the unique 'Gold Spring.' The water is rich in iron and salt; though it emerges clear, it turns a rusty reddish-brown upon contact with air. It is famous for being highly viscous and excellent for warming the core and treating skin ailments.

02
Ginsen (Silver Spring)

Contrast your soak with the 'Silver Spring.' This water is colorless and contains carbonic acid. It is much lighter than the Gold Spring and is said to increase peripheral circulation and boost the metabolism.

03
Nenbutsu-ji Temple

Take a break from the water and visit this historic temple, built on the former villa of Toyotomi Hideyoshi. In the summer, the garden features rare 'Sal' flowers that bloom and fall in a single day, symbolizing the Buddhist concept of impermanence.

04
Carbonated Soda & Crackers

Arima is the birthplace of Japanese carbonated soda. Try a bottle of 'Arima Teppo Water' and pair it with 'Tansan Senbei' (carbonated crackers), which are light, crispy wafers made using the natural spring water.

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Onsen Manners

Arima is one of Japan's 'Three Ancient Springs.' Because it is tucked into a mountain valley, the streets are very steep. Wear the provided ryokan socks (Tabi) inside your geta to prevent blisters.

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Dogo Onsen

The Imperial Bathhouse of Shikoku

Step-by-Step Experience

01
Dogo Onsen Honkan

Bathing at the Honkan is like stepping into a movie. This wood-built castle served as the model for the bathhouse in Ghibli's 'Spirited Away.' Explore the maze-like corridors and steep wooden staircases connecting the different bath levels.

02
Yushinden (Imperial Suite)

For a small fee, you can take a guided tour of the Yushinden—the only bath in Japan built specifically for the Imperial Family. While you cannot soak in the Emperor's tub, you can see the private entrance and the luxurious resting rooms.

03
Botchan Karakuri Clock

Head to the station square to see the mechanical clock come to life every hour. Characters from Natsume Soseki's famous novel 'Botchan' emerge from the clock to perform a musical routine, celebrating the town's literary history.

04
Sky Walk Footbath

End your day at the Dogo Onsen Sky Walk. It features a free footbath (ashiyu) located on a hill overlooking the Honkan. It's the perfect spot to watch the sunset and see the bathhouse lanterns illuminate the district.

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Onsen Manners

The Honkan often has long wait times. Go early in the morning (6:00 AM) when the drum (Shinrokaku) sounds to signal the opening—it's a local tradition that has lasted over 100 years.

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Hakone Onsen

Volcanic Soaks with Fuji Views

Step-by-Step Experience

01
Hakone-Yumoto Gateway

Start at the entrance of the Hakone region. This area has the highest concentration of bathhouses. Walk along the Sukumo River and visit 'Tenzan Tohnji,' a massive complex built into the mountainside with multiple outdoor forest pools.

02
Owakudani (Great Boiling Valley)

Take the ropeway over an active volcanic crater. You can see sulfurous fumes rising from the earth. Eat a 'Kuro-Tamago' (black egg), boiled in the volcanic waters; local legend says eating one adds seven years to your life.

03
Lake Ashi Rotenburo

Book a daytime 'Higaeri' (day trip) soak at a hotel near Lake Ashi. Many of these baths are positioned so that on a clear day, you can see the snow-capped peak of Mount Fuji while floating in the hot mineral water.

04
The Hakone Tozan Railway

Ride the mountain train back down the slopes. The switchback tracks take you through lush hydrangea forests and over deep gorges. In the winter, the rising steam from the valley's many vents creates a mystical atmosphere.

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Onsen Manners

Hakone is a 'Day Trip' favorite from Tokyo. If you want to avoid crowds, skip the weekends. Mid-week visits offer a much more serene experience in the forest baths.