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

Check-in starts at 13:00 and check-out is by 10:00.

Where is Kose Onsen Hotel located?

It is in Kitasaku-gun. Address: 2126 Nagakura Karuizawamachi.

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.

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Kose Onsen Hotel

小瀬温泉ホテル

A secluded Karuizawa forest inn with two private hot spring sources flowing straight into the baths

★ 3.0TrustYou 81/100 · 287 reviews|Kitasaku-gun

📍 View on map

PHOTOS

Photos

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ABOUT

About this ryokan

♨️A secluded Karuizawa forest inn with two private hot spring sources flowing straight into the baths

Nagano · Kose Onsen Hotel

A forest inn dating back to the early Meiji era

🌲A single standalone inn at Kose Onsen, tucked into the trees of Karuizawa's quiet backcountry.
📜Its history goes back nearly 150 years to the early Meiji era.
🏞️The Kose River flows right in front, and the inn blends Japanese ryokan charm with Western touches.

Free-flowing baths from its own sources

♨️The inn owns two sources at 52°C and 45°C, and the water flows straight into the baths with no recirculation, filtering or heating.
💧The supply is so plentiful that half the bath water is replaced every hour; the spring is sodium bicarbonate, known for skin benefits.
🕐The indoor bath is open 13:00 to 10:00 the next morning, closing roughly 10:00–13:00 for draining and cleaning.

Two free private open-air baths

🛁Two private open-air baths, each large enough for up to four people.
🆓They are free and can be used as often as you like when vacant, with about 40 minutes per session as a guideline.
🕐Hours are 13:00–23:00 and 7:00–9:00 the next morning.

Rooms with wooden decks

🛏️The Suite (special room) has a bedroom plus a tatami room and a spacious wooden deck, for 2–5 guests.
🌿The Western-style Twin (1–2 guests) also has a scenic wooden deck, and the Standard Japanese rooms (2–4 guests), renovated in December 2019, have a separate bath and toilet.
🚿Hot spring water is piped to every room's bath; the Twin and Reasonable Japanese rooms have unit baths.

Japanese-French cuisine eaten with chopsticks

🍷Creative Japanese-French courses cook seasonal Shinshu ingredients with French technique, served with rice and soup.
🥩Choose between an upgrade course featuring Nagano beef and the chef's standard course.
🐟Carp, a traditional Shinshu ingredient, is kept for over two weeks in a pond fed by Kose's clear water to remove any muddy taste before cooking.

Lounge lobby and dining room

🔥The lounge lobby serves drinks, and a wood stove is lit in winter.
🪵In summer, the wooden deck offers the sound of the stream and fresh greenery.
🍽️Dinner and breakfast are served in a spacious dining room overlooking the stream, and Wi-Fi is available throughout.

Shiraito Falls and forest walks

🥾The inn sits on the Shinanoji Nature Trail, a trekking route to Shiraito Falls and Ryugaeshi Falls, so you can step straight onto the trail.
🛍️Shopping spots such as Karuizawa Prince Shopping Plaza, Harunire Terrace and Kyu-Karuizawa Ginza are also nearby options.
✨In winter, illuminations light up places like Karuizawa Kogen Church and Shiraito Falls.

Access and parking

🚄Take the Hokuriku Shinkansen from Tokyo to Karuizawa Station, then the Kusakaru bus to the Kose Onsen stop.
🚗By car, go from Usui-Karuizawa IC via Kyu-Karuizawa onto the Shiraito Highland Way and turn right just before the toll gate (no toll).
🅿️Parking for cars and motorbikes plus a covered garage is available on request when booking; winter tires or chains are needed in winter.

Two free private open-air baths

🛁Two private open-air baths, each large enough for up to four people.
🆓They are free and can be used as often as you like when vacant, with about 40 minutes per session as a guideline.
🕐Hours are 13:00–23:00 and 7:00–9:00 the next morning.

Rooms with wooden decks

🛏️The Suite (special room) has a bedroom plus a tatami room and a spacious wooden deck, for 2–5 guests.
🌿The Western-style Twin (1–2 guests) also has a scenic wooden deck, and the Standard Japanese rooms (2–4 guests), renovated in December 2019, have a separate bath and toilet.
🚿Hot spring water is piped to every room's bath; the Twin and Reasonable Japanese rooms have unit baths.

Two free-flowing private sources, free private open-air baths and Japanese-French dinners in a quiet forest setting. Note that it is deep in the woods and requires a bus from the station, and some rooms have unit baths.

#KoseOnsen#KaruizawaRyokan#NaganoRyokan#FreeFlowingOnsen#PrivateOnsen#ShiraitoFalls#JapaneseFrench

✨ Ask AI about this property

AI searches Kose Onsen Hotel's official website to answer. AI can be inaccurate, so please check the original page or the property before booking.

Read the property's own description▾

Property Location With a stay at Kose Onsen Hotel in Karuizawa, you'll be within a 10-minute drive of St. Paul's Catholic Church Karuizawa and Shiraito Falls. This ryokan is 4.9 mi (7.8 km) from Karuizawa Prince Shopping Plaza and 10.5 mi (16.8 km) from Karuizawa Toy Kingdom. Rooms Make yourself at home in one of the 17 air-conditioned rooms featuring flat-screen televisions. Complimentary wireless Internet access is available to keep you connected. Private bathrooms with separate bathtubs and showers feature complimentary toiletries and slippers. Conveniences include safes and electric kettles, and housekeeping is provided daily. Amenities Take in the views from a garden and make use of amenities such as complimentary wireless Internet access and gift shops/newsstands. Business Amenities The front desk is staffed during limited hours. Free self parking is available onsite. Nearby Attractions Distances are displayed to the nearest 0.1 mile and kilometer. Usui Pass Observation Platform - 2.3 km / 1.4 mi Arafune Cold Storage - 2.3 km / 1.4 mi Mt. Asama - 2.3 km / 1.4 mi Karuizawa Wild Bird Sanctuary - 4.3 km / 2.7 mi Hoshino Onsen Hot Spring - 4.6 km / 2.9 mi Shiraito Falls - 4.7 km / 2.9 mi St. Paul's Catholic Church Karuizawa - 4.8 km / 3 mi Harnile Terrace - 5 km / 3.1 mi Kyu Karuizawa Ginza Dori - 5 km / 3.1 mi Muro Saisei Memorial Hall - 5.1 km / 3.1 mi Ginza Shopping Street - 5.1 km / 3.2 mi Alexander Shaw Memorial Hall - 5.2 km / 3.2 mi Karuizawa Shaw Memorial Church - 5.2 km / 3.3 mi Karuizawa New Art Museum - 5.7 km / 3.6 mi Karuizawa Flower Museum - 6.1 km / 3.8 mi The nearest airports are: Tokyo (NRT-Narita Intl.) - 244.3 km / 151.8 mi Tokyo (HND-Haneda) - 195.9 km / 121.7 mi

* This description is the property's own text, in English.

* 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.

ROOMS

Available rooms

ACCESS

Getting there

FACILITIES

Facilities & Services

Parking lot
Interior safe
Air conditioner
Smoking is strictly prohibited in all public and private places
High speed internet access in the room

POLICY

Good to know

Mandatory fees You'll be asked to pay the following charges at the property. Fees may include applicable taxes: · A bathing tax, collected at the property, may be charged. The bathing tax applies to properties with hot springs and ranges from JPY 150-500 per person, per night based on local regulations. Please note that further exemptions may apply. We have included all charges provided to us by the property. Other information · Children 2 years old and younger stay free when occupying the parent or guardian's room, using existing bedding. · The Japanese Ministry of Health, Labour, and Welfare requires all international visitors to submit their passport number and nationality when registering at any lodging facility (inns, hotels, motels, etc. ). Additionally, lodging proprietors are required to photocopy passports for all registering guests and keep the photocopy on file. · Please note that some properties do not permit guests with tattoos to use the onsite public bathing facilities. Check-in Instructions · Extra-person charges may apply and vary depending on property policy · Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges · Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed · Guests must contact this property in advance to reserve access to the hot springs and access to the public bathing facility · This property accepts credit cards and cash · Please note that cultural norms and guest policies may differ by country and by property; the policies listed are provided by the property Special Check-in Instructions The front desk is open daily from 7 AM - 9 PM. This property doesn't offer after-hours check-in. The front desk is staffed during limited hours. For more details, please contact the property using the information on the booking confirmation. Guests booked in Half Board rates must check-in by 6 PM to receive dinner. The entrance to the property closes between 10 PM and 7 AM. Guests are not permitted to enter or leave the property during this time.

* These policies are the property's own text, in English; the cancellation policy shown at booking takes precedence.

GUIDE

New to ryokans?

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

♨️ Onsen bathing etiquette 🩹 Onsen with tattoos?✅ First-timer checklist All guides →

FAQ

Frequently asked questions

What are the check-in and check-out times at Kose Onsen Hotel?: Check-in starts at 13:00 and check-out is by 10:00.
Where is Kose Onsen Hotel located?: It is in Kitasaku-gun. Address: 2126 Nagakura Karuizawamachi.
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.

← Back to search

Kose Onsen Hotel

小瀬温泉ホテル

A secluded Karuizawa forest inn with two private hot spring sources flowing straight into the baths

★ 3.0TrustYou 81/100 · 287 reviews|Kitasaku-gun

📍 View on map

PHOTOS

Photos

1 / 19 · Tap a photo to view it full screen

ABOUT

About this ryokan

♨️A secluded Karuizawa forest inn with two private hot spring sources flowing straight into the baths

Nagano · Kose Onsen Hotel

A forest inn dating back to the early Meiji era

🌲A single standalone inn at Kose Onsen, tucked into the trees of Karuizawa's quiet backcountry.
📜Its history goes back nearly 150 years to the early Meiji era.
🏞️The Kose River flows right in front, and the inn blends Japanese ryokan charm with Western touches.

Free-flowing baths from its own sources

♨️The inn owns two sources at 52°C and 45°C, and the water flows straight into the baths with no recirculation, filtering or heating.
💧The supply is so plentiful that half the bath water is replaced every hour; the spring is sodium bicarbonate, known for skin benefits.
🕐The indoor bath is open 13:00 to 10:00 the next morning, closing roughly 10:00–13:00 for draining and cleaning.

Two free private open-air baths

🛁Two private open-air baths, each large enough for up to four people.
🆓They are free and can be used as often as you like when vacant, with about 40 minutes per session as a guideline.
🕐Hours are 13:00–23:00 and 7:00–9:00 the next morning.

Rooms with wooden decks

🛏️The Suite (special room) has a bedroom plus a tatami room and a spacious wooden deck, for 2–5 guests.
🌿The Western-style Twin (1–2 guests) also has a scenic wooden deck, and the Standard Japanese rooms (2–4 guests), renovated in December 2019, have a separate bath and toilet.
🚿Hot spring water is piped to every room's bath; the Twin and Reasonable Japanese rooms have unit baths.

Japanese-French cuisine eaten with chopsticks

🍷Creative Japanese-French courses cook seasonal Shinshu ingredients with French technique, served with rice and soup.
🥩Choose between an upgrade course featuring Nagano beef and the chef's standard course.
🐟Carp, a traditional Shinshu ingredient, is kept for over two weeks in a pond fed by Kose's clear water to remove any muddy taste before cooking.

Lounge lobby and dining room

🔥The lounge lobby serves drinks, and a wood stove is lit in winter.
🪵In summer, the wooden deck offers the sound of the stream and fresh greenery.
🍽️Dinner and breakfast are served in a spacious dining room overlooking the stream, and Wi-Fi is available throughout.

Shiraito Falls and forest walks

🥾The inn sits on the Shinanoji Nature Trail, a trekking route to Shiraito Falls and Ryugaeshi Falls, so you can step straight onto the trail.
🛍️Shopping spots such as Karuizawa Prince Shopping Plaza, Harunire Terrace and Kyu-Karuizawa Ginza are also nearby options.
✨In winter, illuminations light up places like Karuizawa Kogen Church and Shiraito Falls.

Access and parking

🚄Take the Hokuriku Shinkansen from Tokyo to Karuizawa Station, then the Kusakaru bus to the Kose Onsen stop.
🚗By car, go from Usui-Karuizawa IC via Kyu-Karuizawa onto the Shiraito Highland Way and turn right just before the toll gate (no toll).
🅿️Parking for cars and motorbikes plus a covered garage is available on request when booking; winter tires or chains are needed in winter.

Two free private open-air baths

🛁Two private open-air baths, each large enough for up to four people.
🆓They are free and can be used as often as you like when vacant, with about 40 minutes per session as a guideline.
🕐Hours are 13:00–23:00 and 7:00–9:00 the next morning.

Rooms with wooden decks

🛏️The Suite (special room) has a bedroom plus a tatami room and a spacious wooden deck, for 2–5 guests.
🌿The Western-style Twin (1–2 guests) also has a scenic wooden deck, and the Standard Japanese rooms (2–4 guests), renovated in December 2019, have a separate bath and toilet.
🚿Hot spring water is piped to every room's bath; the Twin and Reasonable Japanese rooms have unit baths.

#KoseOnsen#KaruizawaRyokan#NaganoRyokan#FreeFlowingOnsen#PrivateOnsen#ShiraitoFalls#JapaneseFrench

✨ Ask AI about this property

AI searches Kose Onsen Hotel's official website to answer. AI can be inaccurate, so please check the original page or the property before booking.

Read the property's own description▾

* This description is the property's own text, in English.

ROOMS

Available rooms

ACCESS

Getting there

FACILITIES

Facilities & Services

Parking lot
Interior safe
Air conditioner
Smoking is strictly prohibited in all public and private places
High speed internet access in the room

POLICY

Good to know

* These policies are the property's own text, in English; the cancellation policy shown at booking takes precedence.

GUIDE

New to ryokans?

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

♨️ Onsen bathing etiquette 🩹 Onsen with tattoos?✅ First-timer checklist All guides →

FAQ

Frequently asked questions

What are the check-in and check-out times at Kose Onsen Hotel?: Check-in starts at 13:00 and check-out is by 10:00.
Where is Kose Onsen Hotel located?: It is in Kitasaku-gun. Address: 2126 Nagakura Karuizawamachi.
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.