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Day Trip from Tokyo

Day Trip from Tokyo to Kusatsu Onsen

Travel Time

2 hr 20 min by Shinkansen + express bus from Tokyo Station

Round Trip Cost

¥8,000–¥10,000 (Shinkansen + bus; Tokyo-Kusatsu Bus option: ¥5,000)

Kusatsu is consistently ranked Japan's number one hot spring resort — a steaming mountain village built around the Yubatake (hot spring field), where 32,000 liters of mineral-rich water flow per minute from the earth. A day trip is possible but an overnight stay is transformative.

Highlights

Model Day Trip Itinerary

07:00

Depart Tokyo Station by Shinkansen Asama to Karuizawa (1 hr), then transfer to JR Kusatsu/Agatsuma Line to Naganohara-Kusatsuguchi (45 min), then bus to Kusatsu Onsen (26 min)

09:30

Arrive Kusatsu Onsen Bus Terminal — walk to the Yubatake and see the steaming outdoor hot spring channels

10:00

Yumomi Performance at Nettou-za Theater (¥600, 3 shows daily) — traditional 17th-century technique of cooling the bath with wooden paddles

11:00

Try Kusatsu's free foot onsen at Nishino-Yu park area

12:00

Lunch in Kusatsu — try onsen tamago (soft-boiled eggs in hot springs), miso soup, and mountain vegetable dishes

13:30

Sainokawara Open Air Bath (¥600) — large outdoor hot spring in the cedar forest area, separated men's and women's baths

15:30

Souvenir shopping — try Kusatsu onsen manjyu (steamed buns) and mineral bath salts

16:30

Depart Kusatsu for Tokyo (arriving approximately 20:00)

Stay Overnight? — Highly Recommended

Kusatsu is one of the best overnight destinations from Tokyo. A ryokan stay includes private onsen, kaiseki dinner, and the ability to visit multiple public baths in the village evening and early morning when atmosphere is magical.

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Frequently Asked Questions

What makes Kusatsu Onsen special?+
Kusatsu's spring water is among the most acidic in Japan (pH 2.0) — naturally antiseptic and rich in sulfur, calcium, and aluminum. The water is so hot (94°C at source) that cooling it is a ceremonial art called yumomi.
What is yumomi?+
Yumomi is the traditional practice of cooling Kusatsu's extremely hot spring water using large wooden paddles, accompanied by traditional folk songs. Dating to the Edo period, it's now performed as a cultural show at Nettou-za Theater 3 times daily.
How many public baths are in Kusatsu?+
Kusatsu has 19 public joint-use bathing facilities (kyodo-yu). Foreigners can freely access Sainokawara Rotenburo (¥600) and Goza-no-Yu (¥800). Most other baths are for local residents only by tradition.
Can I do Kusatsu as a day trip?+
Yes, though the 4.5+ hour round trip leaves limited time in the village. A direct highway bus from Shinjuku to Kusatsu (4 hours, ¥2,500) runs twice daily. If going on a day trip, prioritize the Yumomi performance and Sainokawara bath.
What should I know about bathing etiquette in Kusatsu?+
Wash before entering the bath, no swimwear in traditional baths, tie long hair up, tattoos are not permitted in most public baths. Kusatsu' water is very hot and highly acidic — limit your soak to 3 minutes per session and hydrate well.

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