Ryokan Ikoi Sanso

Japanese inn · Karuizawa

Ryokan Ikoi Sanso

Japanese inn · Karuizawa
3365-9 Nagakura, Karuizawa, Kitasaku District, Nagano 389-0111, Japan

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Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null
Ryokan Ikoi Sanso by null

Highlights

Nestled in a tranquil lane, this cozy hot spring inn boasts traditional tatami rooms and relaxing open-air baths, perfect for a rejuvenating getaway.  

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3365-9 Nagakura, Karuizawa, Kitasaku District, Nagano 389-0111, Japan Get directions

ikoisanso.co.jp
@ikoiresorts

Information

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3365-9 Nagakura, Karuizawa, Kitasaku District, Nagano 389-0111, Japan Get directions

+81 267 45 5254
ikoisanso.co.jp
@ikoiresorts

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Last updated

Jul 11, 2025

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Hanz Andersen

Google
We are 3 people and are staying for 2 nights. This ryokan is really cozy, I feel like I can relax here the best in all places we were over the last 2 weeks in japan. The staff can speak english really good and is very kind. The breakfast was a feast. A mix between western and japanese food. We would have loved to get the dinner too but we should have told them 3 days before. Thats a fault on our side, because I imagine it quite tasty too. The rooms are old and you shouldnt move the traditional doors too much because they might fall out of their rail. We slept on futon in a room with complete tatami floor. The best sleep I had in a long time. The shared toilets are clean and function properly. The baths are clean and really comfortable too. I am excited what we have for breakfast tomorrow. Ah and we have a Kotatsu in our room, thats a first. I really recommend this inn!

rae__ne

Google
we tried searching for other hotels closer to the station, but they were all either fully booked or out of our budget. fortunately, we found this gem located within a 15-minute walk from the station and right across a bus stop. we were able to communicate directly with the staff regarding our check-in time, who were super responsive through Agoda chat as well as phone, and could speak both Japanese and English fluently. it wasn't crowded during our stay; even had the entire bath (onsen) to myself. the amenities provided, such as facial wash, cleanser, and lotion, were plentiful, and the place was very clean. you can bathe almost 24 hours a day, except during the cleaning time. there was also a free-flow drink bar with tea & coffee and a microwave available, since the hotel doesn't provide dinner, you have the option to heat your bento. the nearest konbini is within a 4-minute walk. as expected from a traditional Japanese inn, the walls are pretty thin. there was one instance where I could hear somebody snoring at night, although that person's room was three rooms away from ours. but other than that, no complaints. the rooms were amazing, along with the kotatsu, which was a savior during winter weather. we could even see snow from our room windows; it was a perfect experience, to say the least. on a side note, we tried filming TikTok in front of the inn, and the staff came out. we thought he was going to warn us about not filming, but instead, he encouraged us and even recommended prettier spots to film like the garden next to the inn. such a good sport.

Gwen Soh

Google
A very homely and cosy place for our family of four. The staff were extremely helpful to us during our stay, and am ever so grateful for their kind understanding. We stayed in the room with an attached bathroom, but also explored the public bath which was an equally great experience. Overall place was clean and friendly. While the location was a little far from the main town and Karuizawa train station. I appreciate the quietness in the night. Restaurant options were limited and have restricted opening hours but there is a convenience store with great variety of microwaveable options. There is a small park right behind the Ryokan which is great for kids. I will return again.

Alexander Soiefer

Google
The hotel was very good! The food was amazing (I signed up for hot pot), the rooms are traditional and nice, the hotel has a nice communal bath, and the location is great (I went to onsen nearby and it is right by the train station). I highly recommend going!

StiMania

Google
A pretty cozy and quiet hotel inside popular Karuizawa area. Though it's pretty near Hoshinoya Karuizawa, but it offers home like and friendly feelings while staying here. Facilities and room amenities were sufficient and easy to access. My five stars choice with this pricing range while visiting Karuizawa. Great environment and staying experience.

普生缘

Google
It is very nice hotel. We stayed in rooms that had a tatami, and they were very authentic and comfortable too. Breakfast and service overall was also great, all the staff was very nice and accommodating. The hotel was also near a public onsen – only took less than 10 minutes to get there. The hotel was in a great location, easy to find, and easily accessible. I will definitely come back to this hotel the next time I visit karuizawa.

Hann Atipat

Google
I understand, this hotel are decorate with japanese traditional and I don't care how luxury are, But the reason that I have to focus is good room service, The wall are thin and hear the other people noise and the bed, pillow or blanket, we must do it ourself.... Also the Television are too small size and I cannot hear the sound!. But I like this japanese traditional style of room. I'm not frustrating with it. And the bathroom should make it wide for the bathtub, please improve the qualities of service. Thank you

D Marchione

Google
Staff were very friendly and attentive. We stayed in the outdoor glamping tent and it was very nice. The hot pot dinner at the hotel is delicious!!