Yubatake Kusatsu

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The Yubatake, meaning hot-water field, is the symbolic heart of Kusatsu Onsen and one of the most recognisable onsen sights in Japan. Set in the centre of town, it channels around 4,000 litres of source water per minute through wooden troughs that cool it before distribution to the bathhouses.

Steam rises constantly from the emerald-tinged water, and yellow sulphur deposits called yunohana form along the channels.

The Yubatake is the free, ever-open centrepiece of Kusatsu and the best place to grasp why the town is famed for its water. By day you can watch the cooling channels and study the mineral deposits up close.

At night, illumination turns the steaming field into a magical scene ringed by shops, footbaths and lantern-lit lanes.

The wooden cooling channels, the vivid green-tinted water and the drifting sulphur steam are the defining features. A raised walkway lets visitors circle the field and read about the water's journey.

Adjacent free footbaths, the historic Kotobuki-tei rest house and evening illumination make the Yubatake a full experience rather than a single view.

Walk the perimeter path, photograph the steam and channels, and dip into the nearby free footbaths. Browse the surrounding souvenir shops for onsen manju and yunohana bath salts.

Combine a visit with a yumomi show at the neighbouring Netsunoyu bathhouse and an evening stroll when the field is lit.

The central cooling channels and the collection pool are the main draw, with informative signs explaining the water's temperature and flow. Netsunoyu bathhouse, right beside the field, stages the town's yumomi water-stirring shows.

The nearby footbaths and the lantern-lit lanes radiating from the Yubatake are essential accompaniments.

Look closely at the wooden troughs to see thick yellow yunohana deposits harvested and sold as bath additives. A quieter viewpoint from the upper lanes gives a rooftop-level perspective over the steaming field.

Early morning visits, before shops open, offer the field almost to yourself amid rising steam.

The Yubatake embodies Kusatsu's centuries-old onsen culture and the ingenuity of cooling water too fierce to dilute. Watching yumomi at adjacent Netsunoyu connects the field to living tradition.

Buying yunohana harvested from the channels lets you take a piece of Kusatsu's water culture home.

While the Yubatake is a town-centre attraction, it is the surface expression of the geothermal activity beneath Mount Kusatsu-Shirane. The surrounding highlands offer hiking, autumn foliage and winter snow.

The steaming field is a vivid reminder of the volcanic landscape that feeds all of Kusatsu's baths.

Children are fascinated by the steam, colour and smell of the field, and the surrounding free footbaths are an easy, fun stop for all ages. The nearby yumomi shows are entertaining and educational.

Sweet-shop sampling of onsen manju around the field adds to the family appeal.

The illuminated Yubatake is the social focus of Kusatsu after dark, drawing strollers, photographers and yukata-clad onsen guests. Surrounding izakaya and shops stay lively into the evening.

A night footbath beside the glowing field is a quintessential Kusatsu experience.

The classic shot captures the steaming channels and green water framed by lantern light at dusk. Close-ups of the yunohana deposits and wooden troughs reveal rich texture.

Elevated angles from the upper lanes take in the whole field with the town beyond, especially striking with snow or autumn colour.

The Yubatake has cooled and distributed Kusatsu's source water for centuries, allowing the town to use its scalding, acidic springs without dilution. The current arrangement of channels and pools is a refined version of long-standing practice.

It remains the literal and cultural centre of a resort ranked among Japan's three greatest onsen.

The field anchors Kusatsu's identity, appearing on souvenirs, in folk songs and in the town's crest. Yunohana harvested here connects residents and visitors to a working piece of onsen heritage.

The surrounding lanes preserve a traditional resort atmosphere built around the water.

The Yubatake rewards a visit in any season and is open at all hours. Evening illumination is a highlight year-round, and winter adds steam-heightening cold and snow.

Autumn pairs the field with foliage in the surrounding hills, while summer offers cool, pleasant strolling.

Sitting high in the mountains, the Yubatake area is cold and snowy in winter and mild in summer. Steam is most dramatic on cold days.

Snow lies across the town from December to March, autumn is crisp, and summer evenings stay cool, so bring warm layers.

The Yubatake is the backdrop for Kusatsu's onsen festival, seasonal illuminations and the daily yumomi shows next door. Fireworks and mikoshi processions animate the surrounding streets in summer.

Check the official Kusatsu tourism site for current event dates.

Start with a daytime walk around the field, reading the signage and sampling nearby sweets. Take in a yumomi show at Netsunoyu, then explore the lanes and footbaths.

Return after dark to see the illuminated field before dinner, ideally in yukata from a nearby ryokan.

Viewing the Yubatake itself takes 20 to 40 minutes, longer with a footbath and shopping. Combined with a yumomi show and the surrounding lanes, allow one to two hours.

It is best woven into a broader Kusatsu onsen stay rather than visited in isolation.

The Yubatake sits in the centre of Kusatsu Onsen, a short walk from the bus terminal. Reach Kusatsu via JR bus from Naganohara-Kusatsuguchi Station or by direct JR Bus Kanto coach from Tokyo.

By car it is about 3 to 3.5 hours from Tokyo, with paid parking near the centre.

The field and its surrounding attractions are all walkable, with footbaths, bathhouses and shops clustered around it. Most ryokan are within a short stroll.

Sainokawara Park is about 10 to 15 minutes on foot, and local buses serve outlying areas.

The Kusatsu Onsen bus terminal, a few minutes' walk from the Yubatake, is the main arrival point. It links by JR bus to Naganohara-Kusatsuguchi Station and by long-distance coach to Tokyo.

From the terminal, the field is easily reached on foot.

The Yubatake is an open-air site accessible 24 hours a day at no charge, and is illuminated in the evenings. Surrounding shops, footbaths and the Netsunoyu shows keep their own hours.

Check the official Kusatsu tourism site for yumomi show times and shop hours.

Viewing the Yubatake and using the adjacent free footbaths costs nothing. Netsunoyu yumomi shows and nearby bathhouses charge modest entry, typically a few hundred to around 1,000 yen.

Yunohana bath salts and souvenirs are sold separately at the surrounding shops.

The lanes around the Yubatake brim with soba shops, cafes, izakaya and stalls selling steamed onsen manju. Ryokan nearby serve full kaiseki dinners.

Many shops offer onsen-steamed snacks and local sake to enjoy while strolling the field.

Onsen manju is the signature treat sold around the field, alongside Gunma konnyaku, soba and mountain vegetables. Onsen-steamed eggs and buns are popular quick bites.

Local sake pairs well with the warm, hearty dishes served in the surrounding restaurants.

Many of Kusatsu's finest ryokan and hotels sit within a short walk of the Yubatake, some overlooking the illuminated field. Options range from historic inns with private baths to budget guesthouses.

Staying near the field maximises evening atmosphere and easy bathing access.

The Yubatake itself is free, so costs come from baths, food and shopping. A visit with a bathhouse, snacks and souvenirs might run 2,000 to 4,000 yen beyond transport.

Day-trippers can enjoy the field and footbaths at no cost, keeping budgets low.

Shops around the field sell yunohana bath salts harvested from the channels, onsen manju, local sake and Gunma crafts. Onsen-themed souvenirs make characterful gifts.

The surrounding lanes are Kusatsu's main shopping strip, liveliest in the evening.

The water in the channels is scalding, so stay on the designated walkways and keep children close. Paths can be slippery from steam condensation and, in winter, snow and ice.

Wear sturdy footwear and take care on the cobbled and sloped surfaces around the field.

A raised perimeter walkway offers views, but surrounding lanes are sloped and partly cobbled, which can challenge wheelchair users. Some nearby facilities have accessible features.

Contact the Kusatsu tourism office for advice on the most accessible routes and viewpoints around the field.

Interpretive signs at the Yubatake include some English, and nearby larger shops and ryokan often have English-speaking staff. Smaller stalls may not, so a translation app is helpful.

Romaji signage around the town centre aids navigation.

See the Yubatake both by day, to appreciate the channels and deposits, and at night for the illumination. Bring a small towel for the free footbaths that surround it.

Buy yunohana as an easy, lightweight souvenir, and wear grippy shoes for the steamy, sloped lanes.

Carry a small towel for the footbaths, warm layers for the mountain chill and comfortable, grippy shoes for cobbled paths. A camera captures the steam and lantern light well.

Bring some cash for shops and footbath areas, and snow-ready footwear in winter.

Arrive by train and bus and explore the field and town on foot to minimise emissions. Respect the site by staying on walkways and not disturbing the channels.

Buy locally harvested yunohana and support the surrounding family-run shops to sustain Kusatsu's onsen economy.

Netsunoyu bathhouse and numerous footbaths sit right beside the Yubatake, and Sainokawara Park is a short walk away. The wider Kusatsu resort, ski slopes and Mount Shirane highlands are close.

Shima and Ikaho onsen make easy add-ons for onsen-hopping.

The Kusatsu Onsen tourist information centre near the bus terminal, minutes from the Yubatake, offers maps, show times and bathhouse guidance. Staff can advise on etiquette and nearby attractions.

See the official Kusatsu Onsen tourism website for current shop hours, show schedules and events.

This section is being updated and will be available shortly.

This section is being updated and will be available shortly.