Izu-Nagaoka Onsen, Izunokuni三養荘

Sanyo-so

Sanyo-so is a ryokan in the hills above Izu-Nagaoka Onsen in central Izu, made from the sukiya-style villa that Hisaya Iwasaki, eldest son of the Mitsubishi founder, built in 1929 in a garden by the Kyoto gardener Jihei Ogawa, and run as an inn since 1947. Rooms are in the registered-cultural-property Main Building facing the 3,000-tsubo garden, and in a low New Wing that Togo Murano designed in his nineties, set around small courtyard gardens.

Booked through us

Ready to Travel Different?

First-hand advice on the hotel, the room and when to go
Preferred-partner rates and benefits
Industry insight on rates, seasons and timing
One contact before, during and after the stay

Become a client

About the property

Bath in the room: Hot spring, every room
Recognition: Main Building registered as a Tangible Cultural Property of Japan (2017)

Rooms and suites

New Wing Japanese-Western room (Standard)
63.5 sq m or more (8 plus 6 tatami) · Courtyard garden view · Tatami room and a bedroom with two Airweave twin beds · hot-spring bath · for up to four.
New Wing Japanese room (Deluxe)
83.8 sq m or more · Courtyard garden view · Two tatami rooms · some have beds in the second room · hot-spring bath · for up to five.
New Wing Japanese-Western room (Deluxe)
91.5 sq m or more · Courtyard garden view · Tatami room and bedroom with two Airweave beds · hot-spring bath · for up to five.
Fujinouraba (dog-friendly cottages)
76 sq m or more (8 plus 8 tatami) · Two detached rooms for guests travelling with dogs.

Suites

Main Building garden cottages (Takasago, Kagetsu)
97.9 sq m or more · The 3,000-tsubo garden view · Detached rooms of 1967 in the garden · hot-spring bath · for up to five.
New Wing Kihinshitsu
142.6 sq m or more (10, 6 and 8 tatami) · Three-room suite · hot-spring bath · for up to eight.
Main Building Kihinshitsu (Miyuki)
134.8 sq m or more (12.5, 8 and 8 tatami) · Garden, from the high ground view · The 1957 Miyuki-no-ma, a registered cultural property, about 300 m from the New Wing entrance along its own 50 m tatami corridor · hot-spring bath · for up to eight.

Dining and wellness

Grilled fish with pickled ginger, the autumn Matsu kaiseki
A course of the autumn Matsu kaiseki
A simmered dish in a black bowl
Dessert and matcha to end the kaiseki

Yuho: kaiseki dining hall · breakfast and dinner · dinner starts 5.30pm–7.30pm
Bar Kanogawa: bar · nights before holidays 8pm–10.30pm
Lounge Aoi: tea lounge · at the entrance
Wellness: Men's and women's indoor and open-air hot-spring baths, a free-flowing hot-spring bath in every room, and Gara, an all-hands massage salon.

Where it is

Izu-Nagaoka station: 5 min by the hotel’s car
Mishima station: 23 min by train
Numazu IC: 30 min by car

Izunokuni

Open in Google Maps

Q&A

Tell us your dates and our team in Japan books it for you, at the inn’s own rate. We ask for the room we would choose and look after everything else with the inn on your behalf: your preferences and requests, any special arrangement, from a celebration to a car from the station, and whatever you need before and during your stay. The price and cancellation terms are confirmed with you first.

Guests with tattoos may be restricted in the large baths.

No airport close by: from Tokyo, the Tokaido Shinkansen to Mishima, then the Izuhakone Railway to Izu-Nagaoka (about 23 minutes) and the inn's shuttle.