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Kids Stay
From about US$518/ per night (2 adults, ¥82,038)

Reference price from Rakuten Travel as of November 5, 2026 (stay 2026-11-28). US$ is an approximate conversion from yen. Check the booking site for actual rates.

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forumWhat families say

Rakuten Travel rating 4.09 out of 5 (179 reviews). Families traveling with a baby under 1 say the staff were kind and the food was delicious. Some reviews from stays with a 4-year-old note that because breakfast is a buffet, they could take just as much as the child would eat, so little went to waste and they were satisfied. On the other hand, some guests felt the reception staff at the breakfast venue came across as overbearing, which suggests service varies from one staff member to another.

Read guest reviews on Booking.com

Kids Facilities

Free baby-item rentals

Indoor
  • paymentsPrice:Free for guests

Children's yukata, baby baths, bed guards, baby-bottle sterilizing kits and more can be borrowed free of charge for your room, and a crib can be borrowed for children under 1. Items such as humidifiers, air purifiers and thermometers are available as well.

Children's dinner menu

Indoor

At dinner in the restaurant Grill & Dining G, elementary school children are served children's dishes. Breakfast is a buffet, so everyone in the family can pick what they like. The 156-seat restaurant also has one private room.

Categories

Overview

Karuizawa Marriott Hotel is a 142-room resort hotel set amid the greenery of Naka-Karuizawa. It is made up of three buildings: the Main Wing, with its warm wooden touches; the North Wing, where every room has its own onsen bath; and dog-friendly cottages where you can stay with your dog. Free items for babies and toddlers, such as cribs and baby baths, are available to borrow for your room. Children who have not yet started elementary school can co-sleep free of charge, and elementary school children are served children's dishes at dinner.

Rooms

Karuizawa Marriott Hotel has 142 rooms across three buildings: the Main Wing, the North Wing and the dog-friendly cottages. In the Main Wing, the Superior Twin is 32 sq m and sleeps 1 to 3 guests, and the Superior King is 32 sq m and sleeps 2 to 3 guests; in both, a sofa bed is provided when three guests stay. The Japanese-Western room, added in June 2026, is 33 sq m and sleeps 2 to 4 guests, with futon bedding from the third guest onward. The 71 sq m Junior Suite and the 78 sq m Executive Suite each sleep 2 to 5 guests, again with futon bedding from the third guest onward. In the North Wing, every room has its own onsen bath. Its 39 sq m Premier Rooms come either with an onsen open-air bath or with an onsen view bath, and both sleep 2 to 4 guests, with futon bedding from the third guest onward. Families can choose the room type that fits their numbers.

Dining

Breakfast is served buffet-style at Grill & Dining G, the restaurant in the Main Wing. Dinner is served in the same restaurant, and elementary school children are served children's dishes at dinner. The restaurant has 156 seats, including one private room that seats 12. Requests for food allergy accommodation must be made at least 3 days before your visit.

Baths and Onsen

The onsen communal bath and open-air bath on B1 of the Main Wing are open from 5 a.m. to 10 a.m. and from 3 p.m. to midnight. The North Wing rooms come with their own Shiozawa Onsen baths, which are for North Wing guests only.

Family-Friendly Features

Children under school age co-sleep free of charge, with co-sleeping available for up to 2 children. Co-sleeping costs 90% of the adult rate for elementary school children, and also 90% of the adult rate for babies and toddlers who have both meals and bedding. Co-sleeping is not accepted for babies and toddlers with bedding but no meals, or with meals but no bedding. Items available to borrow free of charge for your room include children's yukata, baby baths, bed guards and baby-bottle sterilizing kits, and a crib can be borrowed for children under 1. A humidifier, an air purifier and a thermometer can also be borrowed free of charge. The fitness center is for junior high school students and older, so children under school age and elementary school children cannot use it.

Access

The nearest stations are JR Karuizawa Station and Naka-Karuizawa Station on the Shinano Railway, and you can get to the hotel from either by taxi. A free shuttle bus also runs between the hotel and the station at certain times of year, but the station it serves changes with the season and seats are limited. From Tokyo, the trip takes about 1 hour 30 minutes by Shinkansen and taxi. Parking is available for 74 cars, free of charge and with no reservation needed.

Access & Information

location_onAddress4339 Nagakura, Karuizawa-machi, Kitasaku-gun, Nagano 389-0111
directions_carAccessAbout 15 minutes by taxi from JR Karuizawa Station, or about 5 minutes by taxi from Naka-Karuizawa Station on the Shinano Railway.
trainNearest stationKaruizawa Station / Naka-Karuizawa Station
local_parkingParkingParking is available for 74 cars, free of charge, with no reservation needed.
callPhone+81-267-46-6611
paymentsCardsVISA, JCB, American Express, Diners Club, UC, Mastercard
languageOfficial sitehttps://www.karuizawa-marriott.com/open_in_new

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From about US$518/ per night (2 adults, ¥82,038)

Reference price from Rakuten Travel as of November 5, 2026 (stay 2026-11-28). US$ is an approximate conversion from yen. Check the booking site for actual rates.

Check rates & availability

Opens the booking site in a new tab.

Per night, 2 adultsUS$518+As of November 5, 2026
Book on Booking.com

Frequently Asked Questions

What ages is Karuizawa Marriott Hotel 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.

Does Karuizawa Marriott Hotel have baby beds?

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Baby beds are available to rent. See the Kids Facilities section on this page for details.

Is there parking at Karuizawa Marriott Hotel?

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Parking: Parking is available for 74 cars, free of charge, with no reservation needed.

How do you get to Karuizawa Marriott Hotel?

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About 15 minutes by taxi from JR Karuizawa Station, or about 5 minutes by taxi from Naka-Karuizawa Station on the Shinano Railway.

Is co-sleeping free for a child who hasn't started elementary school?

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Children who have not yet started elementary school can stay free of charge when co-sleeping. Co-sleeping is free only when the child does not have meals.

How much does it cost for an elementary school child to stay?

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It depends on the plan, but as a guide, both younger and older elementary school children pay 90% or 100% of the adult rate.

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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.