



界 仙石原
Reviewed by Sora Matsuda·Founding Editor & Ryokan Correspondent·How we verify
Sora's verified pickA 16-room Hoshino Resorts ryokan on the Sengokuhara plateau where every room has its own open-air bath fed from the Owakudani hot spring.
Multi-course kaiseki dinner and traditional Japanese breakfast are typically included in the nightly rate at this luxury ryokan. Premium kaiseki tiers, in-room dining (heya-shoku), and private dining rooms (koshitsu) may be available — request these preferences when booking through Trip.com or Booking.com.
Dietary requests (vegetarian, halal, gluten-free, allergies) should be communicated at booking, not on arrival — the kitchen pre-orders ingredients several days ahead.
12 questions about KAI Sengokuhara
Plan your Japan trip
Booked your ryokan? Lock in the basics for a smooth trip — stay connected from arrival, ride unlimited Shinkansen, and skip the rush hour crowds.
Unlimited Shinkansen + JR trains for 7/14/21 days. Pays for itself in 2-3 long-distance trips.
View on KlookStay connected from the moment you land — instant activation, no physical SIM swap.
View on Airalo4G unlimited data. Great for groups — airport pickup, return at any major station.
View on KlookAffiliate disclosure: we earn a small commission when you book through these links — at no extra cost to you. This helps keep our ryokan guides free.
These Hakone ryokan offer a similar onsen-town experience at a meaningfully lower price — ranked by traveler review count.

ホテルグリーンプラザ箱根
A 123-room resort hotel above Ubako whose communal open-air bath faces Mt. Fuji head-on, and the cheapest Fuji-view onsen bed on the Sengokuhara plateau.
from $101 // per night

吉池旅館
A grand ryokan with 6 private hot spring sources, a stunning Japanese garden with koi pond, and kaiseki dining.
from $200 // per night

箱根・芦ノ湖 はなをり
A 154-room lakeside onsen hotel two minutes from Togendai, with two terraced communal hot spring baths facing Lake Ashi and a buffet-style dinner.
from $155 // per night
More in Hakone

福住楼
A registered Cultural Property ryokan built in 1890, where you sleep inside a piece of Japanese history.
from $150 // per night

強羅花壇
A world-class luxury ryokan on the grounds of a former imperial summer retreat, with private onsen and kaiseki mastery.
from $500 // per night

箱根小涌谷温泉 水の音
A renovated onsen ryokan with two hot spring sources, garden private baths, and two distinct accommodation wings.
from $150 // per night
| Ryokan | From | Rating | Features | Book |
|---|---|---|---|---|
| $253+ | 9.6 293 reviews | EN OKOnsen | Book on Agoda | |
| $524+ | 9.6 14 reviews | Private Onsen | Book on Agoda | |
![]() Gora Kadan Hakone | $500+ | 9.5 89 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Hakone Gora KARAKU Hakone | $402+ | 9.3 749 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Hakone Ginyu Hakone | $400+ | 9.3 124 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Senkyoro Hakone | $132+ | 9.2 1,288 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Hotel Kajikaso Hakone | $180+ | 9.2 156 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Kinnotake Sengokuhara Hakone | $440+ | 9.2 41 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Hakone Kowakien Tenyu Hakone | $279+ | 9.1 2,340 reviews | EN OKPrivate Onsen | Book on Booking.com |
| $70+ | 9.1 187 reviews | EN OKPrivate Onsen | Book on Booking.com | |
![]() Gora Kansuirou Hakone | $250+ | 9.0 645 reviews | EN OKPrivate Onsen | Book on Booking.com |
![]() Hakone Kowakien Mikawaya Hakone | $250+ | 9.0 142 reviews | EN OKPrivate Onsen | Book on Booking.com |

Hakone

Hakone

Hakone

Hakone

Hakone

Hakone

Hakone

Hakone

Hakone
Prices shown are approximate starting rates per person per night. We may earn a commission on bookings.
Nearby experiences
Booking links may earn us a commission at no extra cost to you.
Related Articles