Kusatsu Onsen Hotel Boun

♨️A Kusatsu inn founded in 1598, with six free-flowing baths drawn from two sources

Gunma, Kusatsu Onsen · Hotel Boun

1

Six baths, drawing on two natural sources

• ♨️Two natural sources on hand — Nishinokawara and Bandai
• 🛁Three communal baths plus three open-air baths, six in all
• 🌿A strongly acidic sulfur spring, said to benefit skin, diabetes, and high blood pressure
• 🧖Two saunas newly added in April 2024

2

Bandainoyu, drawn at 94°C

• 🔥The Bandai source rises at a scalding 94–95°C
• 💪A famed Kusatsu water known for powerful antibacterial and anti-inflammatory effect
• 🌅Complete with indoor bath, open-air bath, and sauna
• ⏰Baths rotate between men and women, open from check-in to check-out (closed 3–5am for cleaning)

3

The new main building, with a hot-spring bath in every room

• 🏯The new main building opened in January 2025, every room with a free-flowing hot-spring bath
• 🛏️Japanese-Western rooms with 8-mat tatami and a twin-bed bedroom
• 🌳Rooms framed by natural scenery

4

Unsho-an rooms with private open-air bath

• ♨️Private open-air baths flowing with hot spring water in every room
• 🍃Spacious 12.5-mat rooms with a 6-mat veranda
• 🍂Garden views that change with the seasons

5

A kaiseki that keeps its warmth

• 🍱A carefully prepared kaiseki served across 4 to 5 courses
• 🥩A rich à la carte selection, including wagyu steak on ceramic plate
• 🍶A curated selection of Gunma sake and craft beer
• 🌾Built around seasonal local ingredients

6

A free-drink lounge and other amenities

• ☕A lounge offering complimentary drinks
• 💆Massage services at the healing spa Nagomi
• 🛍️A gift shop and the private dining room Unrei

7

Onsen-town strolls in a colorful yukata

• 👘A rental corner offering colorful yukata
• 🚶About a 5-minute walk to Yubatake
• 🌃Perfect for an evening stroll through Kusatsu's lit-up onsen town

8

Fully non-smoking, and easy to reach from Tokyo

• 🚭A fully non-smoking property for a fresh, comfortable stay
• 🚌Pickup available from the Kusatsu Onsen bus terminal
• 🅿️On-site hotel parking
• 🚆A direct route from Ueno via Takasaki to Kusatsu

3

The new main building, with a hot-spring bath in every room

• 🏯The new main building opened in January 2025, every room with a free-flowing hot-spring bath
• 🛏️Japanese-Western rooms with 8-mat tatami and a twin-bed bedroom
• 🌳Rooms framed by natural scenery

4

Unsho-an rooms with private open-air bath

• ♨️Private open-air baths flowing with hot spring water in every room
• 🍃Spacious 12.5-mat rooms with a 6-mat veranda
• 🍂Garden views that change with the seasons

Show more (6 more)▾

Two sources, welcoming guests since 1598. From the new main building's in-room hot-spring baths to a circuit of six baths, experience the essence of Kusatsu at Boun.

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* This introduction was compiled from information published by each property (official website and similar sources), so some details may differ from what you find on the day. It is AI-assisted and can contain errors — please check the official website and the details shown at booking before you reserve.

체크인·체크아웃 안내 · 체크인: 14:00 · 체크아웃: 10:00 · 마지막 체크인: 18:00

* Translated from information supplied by the property; the cancellation policy shown at booking takes precedence.

From onsen etiquette to check-in — the things worth knowing first.

What are the check-in and check-out times at Kusatsu Onsen Hotel Boun?

Check-in starts at 14:00 and check-out is by 10:00.

Where is Kusatsu Onsen Hotel Boun located?

It is in Kusatsu · Gunma Agatsuma-gun. Address: 433-1 Kusatsu, Kusatsu-machi, Agatsuma-gun, Gunma.

How much does one night cost?

Recent lowest observed rate starts from ₩479,425 per night for two adults. Rates vary by date and room type, so a live search is most accurate.

What is the cancellation and refund policy?

Free-cancellation deadlines vary by rate plan and are shown with each room. Cancelling before the deadline gives a full refund.