Hotel
Hakone, Hakone & Mount Fuji
Hoshino Resorts, KAI Hakone
A 34-room onsen ryokan on Hakone Yumoto's old Tokaido road, with hinoki cypress baths fed by Mt. Yusaka's waters and the Sukumo River flowing alongside.
Price on request
Hotel · Hakone, Japan
KAI Sengokuhara
A hot spring ryokan in Sengokuhara, Hakone, where each of the sixteen rooms opens onto its own outdoor bath on a private terrace.
Overview
KAI Sengokuhara sits in Sengokuhara, part of Hakone in Kanagawa prefecture, about fifteen minutes by car from Gora Station. It is a hot spring ryokan with sixteen rooms, each built for one to three guests, and each fitted with a private outdoor bath on its terrace. The baths draw on milky-white volcanic hot spring water, which feeds both a hot bath and a cooler, lukewarm one. After dark, a water garden beside the outdoor bath is lit with glow stones. Rooms are hung with work made by artists who have themselves stayed at the ryokan, part of a standing arrangement the hotel calls its KAI Signature Rooms.
Evenings include a workshop where guests decorate a tenugui, a traditional Japanese handkerchief, painting their own design onto the cloth. Dinner is a kaiseki menu built around local produce and imagery, including a smoke dish meant to evoke Owakudani, the volcanic valley nearby, served on dishware chosen to match. Meals are taken in semi-private dining rooms screened with lattice work. Breakfast centres on a thick slice of soft-grilled Japanese yam, a local root vegetable, with a Western-style alternative available except from 1 to 3 January. Vegetarian kaiseki dinners and breakfasts are offered, free of the eight major food allergens, and there are separate children's menus for guests aged four to six and seven to eleven.
The ryokan is smoke-free, with a designated smoking area, and has a restaurant, café and lounge, a spa and massage service, a playroom, a pool, an onsen, a public bath and a meeting room. Pets are allowed, Wi-Fi is free throughout, and private parking and EV charging are provided without reservation. Nearby attractions include Hakone Shrine, the Owakudani volcanic valley, Mount Fuji, the Hakone Open-Air Museum, the Hakone Botanical Garden of Wetlands and the Sengokuhara pampas grass field. Bookings are currently accepted only from within Japan.
- Rooms
- 16
- Minimum stay
- 1 night
- Check in
- 15:00
- Check out
- 12:00
Why we like it
- 16 rooms, each for 1 to 3 guests, with a private outdoor bath on every terrace
- Milky-white volcanic hot spring water feeds a hot bath and a separate lukewarm bath
- Water garden beside the outdoor bath lit with glow stones after dark
- Nightly workshop teaching guests to decorate a tenugui cloth by hand
- Kaiseki dinner includes a smoke dish designed to evoke the Owakudani volcanic valley
- Rooms hung with work by artists who have stayed at the ryokan
Gallery
Rooms & suites
Categories shown for orientation. Your travel advisor will confirm which are available for your dates and recommend the one that suits the trip.
KAI Signature Rooms
Each room has a private outdoor bath on its terrace, fed by the ryokan's milky-white volcanic hot spring water, and is hung with work made by artists who have themselves stayed at the property.
Up to 3 guests
Amenities
- Restaurant
- Café / Lounge
- Spa / Massage
- Playroom
- Pool
- Onsen
- Public bath
- Meeting Room
Reserving through us
Included when your travel advisor confirms this stay
- Daily breakfast for two
- Room upgrade on arrival, subject to availability
- Property credit or equivalent where the house offers one
- Early check in and late check out on request
- Welcome amenity and your travel agent known to the general manager
Eligible preferred amenities are applied wherever available, subject to the property at the time of stay, and are confirmed in your proposal.
Location
Hakone, Japan
Ryokans with private onsen, the mountain on a clear morning and Tokyo ninety minutes behind you.
Questions
- How many rooms does KAI Sengokuhara have?
- The ryokan has 16 rooms, each built for between one and three guests.
- Does every room have its own hot spring bath?
- Yes. Each room has a private outdoor bath on its terrace, fed by the hotel's milky-white volcanic hot spring water, which also supplies a separate lukewarm bath.
- What is dinner like at KAI Sengokuhara?
- Dinner is a kaiseki menu served at 5:30pm or 7:30pm in semi-private dining rooms screened with lattice work. Dishes include a smoke dish designed to evoke the nearby Owakudani volcanic valley, served on artistically designed dishware. Vegetarian kaiseki dinners are also available.
- Can children and pets stay at the ryokan?
- Pets are allowed, and there are dedicated children's menus for guests aged four to six and seven to eleven. Bed-sharing is available for children up to six years old, and a playroom is on site.
- Can I book KAI Sengokuhara from outside Japan?
- According to the property's own site, bookings are currently accepted only from within Japan; guests should check the Japanese-language pages for further information.
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