Kusatsu Onsen Attractions: Things to Do in Kusatsu (2026 Guide)

Things to do in Kusatsu Onsen: the Yubatake hot-water field, yumomi shows, open-air baths, skiing and shrines — with 2026 prices, hours, a day-trip itinerary and Tokyo access.

June 22, 2026Updated June 22, 202612 min readBy Kenji Tanaka

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Kusatsu Onsen, perched at 1,200 m in the mountains of Gunma Prefecture, is widely rated Japan's best hot-spring town — and the highest-output natural onsen in the country, gushing more than 32,000 litres of mineral-rich water a minute. For first-time visitors the question is rarely "is it worth it" but "what are the actual things to do in Kusatsu Onsen beyond soaking?" This guide answers that: the five sights below are the ones that consistently reward the time and ticket price, grouped by what you came for — bathing, the famous hot-water field, the yumomi paddle show, winter skiing and a mountain shrine. Each card links to a full visitor guide with verified 2026 prices, opening hours and the practical tips that don't make it onto the official site. Further down you'll find a free-vs-paid breakdown, a half-day and full-day itinerary, how to reach Kusatsu from Tokyo in 3–4 hours, the best time to visit and money-saving tips. Bookmark this page as your starting point.

Top 5 attractions in Kusatsu

Yubatake Hot Water Field

The steaming hot-water field at the heart of Kusatsu Onsen, channeling 4,000+ litres of spring water per minute.

Visitor guide →

Sainokawara Park & Open-Air Bath

Riverside park of bubbling hot streams ending in one of Japan's largest open-air rotenburo.

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Netsu-no-yu Yumomi Hall

Hall hosting the traditional yumomi hot-water-stirring performance with song and wooden paddles.

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Kusatsu Onsen Ski Resort

One of Japan's oldest ski areas on Mt Shirane, pairing powder runs with an onsen soak.

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Kusatsu Shirane Shrine

Mountain shrine dedicated to the deities of Mt Kusatsu-Shirane, reached by a forest stairway.

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Kusatsu Onsen attractions by type

Kusatsu's draws fall into a few clear categories, and knowing which is which makes it easy to build a plan around your interests. Almost everything sits within a 10–15 minute walk of the central Yubatake, so you rarely need transport once you arrive. The town's water is famously acidic — strong enough to be antibacterial, which is part of its long-standing reputation as a "cure-all" spring — so it's also worth pacing your soaks: short, hot dips rather than long ones. The five attractions below cover the full experience, from the must-see centrepiece to the seasonal and the spiritual, and you can mix as many as your time allows.

The hot-water field — Yubatake

The Yubatake (湯畑), or "hot water field," is the symbol and beating heart of the town. A wooden-channelled basin in the centre of the village, it cools and distributes the source water to the bathhouses while throwing up clouds of sulphurous steam. It is open 24 hours, free to view, and best seen twice — by day for the turquoise mineral deposits, and after dark when it is lit and the steam glows. Free footbaths (yu-kemuri-tei) ring the field if you want to dip your feet without committing to a full bath.

Onsen baths — public bathhouses and open-air rotenburo

You don't visit Kusatsu without soaking. Sainokawara Park, a 10-minute walk upstream from the Yubatake, is a valley of bubbling hot streams and pools that ends in Sai-no-Kawara Rotenburo, one of the largest open-air baths in Japan (around ¥700 for adults). The town also keeps a network of small, free local bathhouses (kyodo-yu) such as Jizo-no-Yu and Shirahata-no-Yu — fiercely hot, no-frills, and authentically local. For the etiquette, hours and prices of each, see our guide to Kusatsu Onsen's public baths.

The yumomi show — Netsu-no-yu

Kusatsu's source water emerges far too hot to enter, so traditionally locals cooled it not with cold water (which would dilute the minerals) but by stirring it with long wooden paddles while singing — a ritual called yumomi. Netsu-no-yu Hall, beside the Yubatake, stages a costumed yumomi performance with song and the occasional audience paddle-along. Shows run several times daily; admission is roughly ¥800 for adults and ¥400 for children. Tickets can't be reserved and sell on the day, so arrive 15–20 minutes early for popular slots. Full schedule in our yumomi show guide.

Winter skiing — Kusatsu Onsen Ski Resort

From December to early April the Kusatsu Onsen Ski Resort on the slopes of Mt Shirane turns the town into a rare ski-and-soak destination — one of Japan's oldest ski areas, with runs for beginners through advanced and an onsen waiting at the bottom. It's the most seasonal of the five attractions but, in season, the headline reason many people choose Kusatsu over other onsen towns.

Mountain shrine — Kusatsu Shirane Shrine

For a quieter half-hour, Kusatsu Shirane Shrine sits up a forest stairway dedicated to the deities of Mt Kusatsu-Shirane. It's free, rarely crowded, and pairs naturally with a walk between the Yubatake and Sainokawara Park.

Free vs paid: what costs money in Kusatsu

One of Kusatsu's strengths is how much of it is free. Use this to budget a visit:

Attraction / experience	Cost (2026)	Notes
Yubatake hot-water field	Free	Open 24h; lit at night
Free footbaths (around Yubatake & Sainokawara)	Free	Open 24h
Local public bathhouses (Jizo-no-Yu, Shirahata-no-Yu, etc.)	Free	Donations welcome; bring your own towel
Kusatsu Shirane Shrine	Free	Daylight hours
Sai-no-Kawara Rotenburo (large open-air bath)	~¥700 adult	Towel rental extra
Yumomi show at Netsu-no-yu	~¥800 adult / ¥400 child	Includes a souvenir paddle; same-day tickets only
Kusatsu Onsen Ski Resort lift pass	~¥4,000–5,000/day	Winter season only

In short: you can spend a satisfying half-day in Kusatsu for almost nothing, and the two paid headline experiences — the rotenburo and the yumomi show — together cost under ¥1,600.

Suggested Kusatsu itinerary: half-day and full-day

Half-day (3–4 hours): Start at the Yubatake to orient yourself and test a free footbath. Catch a yumomi show at Netsu-no-yu next door, then walk up to Sainokawara Park for a soak in the big open-air rotenburo. That's the essential Kusatsu in three stops, all within a 15-minute walk.

Full day: Add the free local bathhouses on the walk between the Yubatake and Sainokawara, climb to Kusatsu Shirane Shrine, browse the souvenir lanes around the field, and return to the Yubatake after dark for the lit-up view. Break up the bathing with onsen-tamago (hot-spring eggs) and yu-no-hana sweets from the stalls along the field, and leave time for the steam-and-light atmosphere of the central plaza in the evening — it's the moment most visitors remember. If you can stay overnight, do: an evening and a dawn soak are the best part of an onsen town, a ryokan dinner is part of the experience, and a single day trip can feel rushed given the 3–4 hour journey each way. In winter, swap the morning for the slopes at the ski resort on Mt Shirane, then warm up with an afternoon rotenburo soak — the ski-and-soak combination is Kusatsu's signature winter day.

Getting to Kusatsu Onsen from Tokyo

Kusatsu is one of the more accessible major onsen towns from the capital, taking roughly 3–4 hours by either route:

By direct bus (simplest): The JR Kanto highway bus runs from Shinjuku Expressway Bus Terminal (Busta Shinjuku) straight to Kusatsu Onsen Bus Terminal in about 4 hours, for roughly ¥3,500–4,000 one way. No transfers, and it drops you a short walk from the Yubatake.
By train (fastest): Take a Shinkansen or limited express to Naganohara-Kusatsuguchi Station via the Agatsuma Line, then a 25–30 minute JR bus to the town. Total time around 3–3.5 hours; faster but with a transfer.

Because the town is compact and walkable, you won't need a car or local transport once you arrive. Kusatsu also makes a strong day trip from Tokyo, though an overnight is better — see more options on our Tokyo day trips hub and the full Kusatsu Onsen attractions guide for deeper planning.

Best time to visit Kusatsu Onsen

Kusatsu rewards every season, but they're very different trips. Winter (December–March) is the most atmospheric: steam rising off the Yubatake against snow, a rotenburo soak as flakes fall, and skiing on Mt Shirane — it's the peak season, so book lodging early. Summer turns the highland town into a cool escape from Tokyo's heat, ideal for hiking nearby and exploring the moss park and wetlands above town. Autumn brings koyo foliage to the surrounding mountains, and late spring is quiet and mild. For a month-by-month breakdown of weather, crowds and events, see our guide to the best time to visit Kusatsu Onsen.

How to save money in Kusatsu

Kusatsu is one of the cheaper premium onsen experiences in Japan if you plan it right:

Lean on the free bathhouses. The town's local kyodo-yu cost nothing — soak at several and pay only for the big Sainokawara rotenburo if you want the open-air view.
Bring your own towel. Rentals add up across multiple baths; a quick-dry towel pays for itself in a day.
Take the bus, not the train. The direct Shinjuku bus is usually cheaper than the Shinkansen route and needs no transfer.
Visit the Yubatake at night for free. The single most photographed sight in town costs nothing and is best after dark.
Day-trip in the off-season if you're watching the budget — though for value, a single overnight in a ryokan with two meals often beats two daytime trips.

Frequently asked questions

What are the top things to do in Kusatsu Onsen?

The essentials are the Yubatake hot-water field, a yumomi paddle show at Netsu-no-yu, and a soak in the large open-air rotenburo at Sainokawara Park. In winter, add skiing at Kusatsu Onsen Ski Resort, and any time of year you can climb to Kusatsu Shirane Shrine.

Is Kusatsu Onsen worth visiting as a day trip from Tokyo?

Yes — it's about 3–4 hours each way by direct bus or train, so a long day trip is feasible and lets you see the Yubatake, a yumomi show and one bath. That said, an overnight stay is strongly recommended: the Yubatake lit at night and a dawn rotenburo soak are the best parts of an onsen town.

How do I get to Kusatsu Onsen from Tokyo?

The simplest route is the JR Kanto highway bus from Busta Shinjuku directly to Kusatsu Onsen, about 4 hours for ¥3,500–4,000 with no transfers. The fastest is a Shinkansen/limited express to Naganohara-Kusatsuguchi Station, then a 25–30 minute bus — roughly 3–3.5 hours total.

How much does it cost to enjoy Kusatsu Onsen?

Much of it is free, including the Yubatake, footbaths, local public bathhouses and Shirane Shrine. The two main paid experiences are the Sainokawara open-air bath (~¥700) and the yumomi show (~¥800 adult / ¥400 child). Skiing in winter adds a lift pass of about ¥4,000–5,000 per day.

What is the yumomi show and where can I see it?

Yumomi is the traditional practice of cooling Kusatsu's scaldingly hot source water by stirring it with long wooden paddles while singing, rather than diluting it with cold water. A costumed performance runs several times daily at Netsu-no-yu Hall next to the Yubatake; tickets (around ¥800) are sold on the day only.

When is the best time to visit Kusatsu Onsen?

Winter (December–March) is the most atmospheric and the only ski season, but it's also peak. Summer is a cool highland escape ideal for hiking, autumn brings foliage, and late spring is quiet and mild. Choose by whether you want snow-and-ski or a calmer, cheaper soak.

How long should I spend in Kusatsu Onsen?

You can cover the headline sights — Yubatake, a yumomi show and one bath — in a half-day of 3–4 hours. A full day adds the free local bathhouses, the shrine and a night-time return to the lit Yubatake. One overnight is the sweet spot for most visitors.