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Kids Stay
From about US$723/ per night (2 adults, ¥114,400)

Reference price as of September 13, 2026 (stay 2026-10-10). US$ is an approximate conversion from yen. Check the booking site for actual rates.

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forumWhat families say

Rakuten Travel rating 4.69 out of 5 (1,196 reviews). In one review from a family who stayed with a 2-year-old, guests praised how soft their skin felt after the onsen, and were pleased that rice and miso soup were prepared for their picky eater and that small portions of the adults' dishes could be shared. Some guests also praise the kind service from staff. Another review, however, describes it as a quiet ryokan where adults unwind rather than a place where children run around, so families hoping for a lively stay may find it too quiet.

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Kids Facilities

Children's amenities

Indoor

Children's yukata, haori jackets and slippers are provided in the rooms. Sekizenkan prepares children's amenities so that families staying with children can relax with peace of mind, and the contents vary by room. Some rooms also provide children's samue work jackets.

Hearty kids' plate and kids' lunch

Indoor

Elementary school children are normally served the same kaiseki course as adults, but this can be changed to a hearty kids' plate on request. Children under school age are served a hearty kids' plate, and a kids' lunch is also prepared for children under school age booked with meals.

Sanso no Yu (free private-hire bath)

Indoor
  • paymentsPrice:Free for guests

The two private-hire baths known as Sanso no Yu in the Sanso building are free family baths that can be locked from the inside. Staying guests can use all of the onsen baths in Kashotei, Sanso and the Main Building, so families can bathe together at their own pace. However, due to construction starting in August 2026, the paid, reservation-based private-hire baths Seki and Zen cannot be used.

Categories

Overview

Shima Onsen Sekizenkan Kashotei Sansou is an onsen ryokan made up of Kashotei, which sits on high ground in Shima Onsen, and Sanso, a nationally registered tangible cultural property. Stays with children are limited to Kashotei; because Sanso is a wooden building where sound carries, children of elementary school age and younger cannot stay there. Kashotei's standard rooms measure 12.5 tatami mats plus 2 tatami mats and accommodate 1 to 6 guests, with co-sleeping for up to 3 children. Dinner is a seasonal kaiseki course, and elementary school children can switch to a hearty kids' plate. The free private-hire baths, the communal bath and the other onsen baths are open to all staying guests.

Rooms

Stays with children are limited to the rooms in Kashotei. The standard room is a sukiya-style Japanese-style tatami room of 12.5 tatami mats plus 2 tatami mats, set on high ground surrounded by pine woods, and accommodates 1 to 6 guests. It has a separate bath and toilet, with a bathroom that includes a washing area. Co-sleeping is possible for up to 3 children. Sanso, by contrast, is a wooden building where sound carries, so children of elementary school age and younger cannot stay there. Families with children of elementary school age and younger need to book a room in Kashotei.

Dining

Dinner is a seasonal kaiseki course using fresh local vegetables along with ingredients carefully selected from across Japan. For Kashotei's standard rooms, there are plans where the meal is served in a designated dining area, as well as plans with in-room dining for up to 6 guests. Elementary school children are served the same kaiseki course as adults, but on request this can be changed to a hearty kids' plate. Children under school age are served a hearty kids' plate. Guests with food allergies must notify the ryokan at least 3 days before the date of the stay; the ryokan cannot accommodate severe allergy symptoms and does not change its stocks or seasonings. An okuizome celebration meal for a baby's 100th-day milestone is also available for 5,500 yen; because the serving vessels are limited in number, it must be reserved by 3 p.m. 5 days in advance.

Baths and Onsen

Staying guests can use all of the onsen baths in the Main Building, Sanso and Kashotei. The two Sanso no Yu baths in Sanso are free private-hire baths that can be locked from the inside, so families can bathe together at their own pace. Please note that from August 2026, construction of a new open-air communal bath begins in the Kashotei courtyard area, and the paid, reservation-based private-hire baths Seki and Zen are being demolished and cannot be used. During the construction period, Kashotei's communal bath Mori no Yu also opens from 3 p.m. instead of its usual time.

Family-Friendly Details

Children aged 3 and over are charged a facility fee of 2,750 yen even when they do not have meals or use futon bedding. Children under 3 stay free of charge if they do not need meals or futon bedding. Infants and young children staying with meals and bedding are charged 50% of the adult rate, and elementary school children 70%. Children's yukata, haori jackets and slippers are provided in the rooms, and Sekizenkan prepares children's amenities so that families can stay with peace of mind.

Access

By car, it is about 60 minutes from the Shibukawa-Ikaho IC or the Tsukiyono IC on the Kan-Etsu Expressway. By train, it is 40 minutes by bus or 25 minutes by taxi from JR Nakanojo Station. There is parking for 50 cars, free for staying guests and with no reservation required. Note that the parking for Kashotei and Sanso is in a different location from the Main Building's parking.

Access & Information

location_onAddress4236 Shima Ko, Nakanojo-machi, Agatsuma-gun, Gunma 377-0601
directions_carAccessFrom Nakanojo Station, 40 minutes by bus to the last stop, or 25 minutes by car. From the Shibukawa-Ikaho IC, about 39 km and 60 minutes via Route 17 and Route 353.
trainNearest stationJR Nakanojo Station
local_parkingParkingParking for 50 cars, free of charge, with no reservation required.
callPhone+81-279-64-2101
paymentsCardsVISA, JCB, American Express, Diners Club, UC, DC, NICOS, Mastercard, Saison
languageOfficial sitehttps://www.sekizenkan.co.jp/open_in_new

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From about US$723/ per night (2 adults, ¥114,400)

Reference price as of September 13, 2026 (stay 2026-10-10). US$ is an approximate conversion from yen. Check the booking site for actual rates.

Check rates & availability

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Per night, 2 adultsUS$723+As of September 13, 2026
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Frequently Asked Questions

What ages is Shima Onsen Sekizenkan Kashotei Sansou best suited to?

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It has facilities that work especially well for babies and toddlers (ages 0 to 2) and children aged 3 and over. There is no age limit, and families with children of any age can stay.

Is there parking at Shima Onsen Sekizenkan Kashotei Sansou?

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Parking: Parking for 50 cars, free of charge, with no reservation required.

How do you get to Shima Onsen Sekizenkan Kashotei Sansou?

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From Nakanojo Station, 40 minutes by bus to the last stop, or 25 minutes by car. From the Shibukawa-Ikaho IC, about 39 km and 60 minutes via Route 17 and Route 353.

Are children's meals available?

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Children of elementary school age and younger are served their own menu, different from the adults' bento. Rice and the Joshu mugibuta koshine soup come with free refills, and a kids' plate for children under school age is also available.

Are the rooms soundproofed well enough to stay with a small child without worrying about other guests?

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All of Kashotei's rooms offer excellent comfort and soundproofing, which makes them ideal for stays with small children.

Are children's yukata and amenities provided?

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Children's amenities such as yukata, tanzen (a padded outer robe), haori jackets and slippers are provided. The contents vary by room, so please confirm the details.

Can we order a celebration meal for a child, such as an okuizome?

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An okuizome celebration meal for a baby's 100th-day milestone is available. The serving vessels are limited in number, so an early reservation is required.

How many children can co-sleep, and are there children's rates?

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In Kashotei's standard rooms, up to 3 children can co-sleep. As for children's rates, children aged 3 and over are charged a facility fee of 2,750 yen. Children under 3 stay free of charge if they do not need meals or futon bedding. Infants and young children staying with meals and bedding are charged 50% of the adult rate, and elementary school children 70%.

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Guests

Information on this page was compiled by directly consulting Official website, Rakuten Travel, Ikyu.com (a Japanese booking site), Jalan (last verified: August 2026). Prices, availability and seasonal operations change. Please check each booking site for the latest information.

We take care to keep information accurate, but always confirm the latest details on the hotel's official site and booking sites before you book or visit.

For the people who run this property: corrections and updates go through For Hotels & Partners, and the "Listed on Kids Stay" badge for your website is on Listing badge. Both are free.