[Izu Nagaoka Onsen Sanyo-so] Limited-time Offer: 'Showa-era Guest Hospitality Accommodation Plan' for a Stay Evoking the Atmosphere of Yesteryear

Izu Nagaoka Onsen Sanyo-so (Location: 270 Aza-ue, Izunokuni City, Shizuoka Prefecture; General Manager: Masahiro Yoshiura) will sell the 'Sanyo-so Showa-era Guest Hospitality Accommodation Plan' for a limited period from May 6 (Wednesday) to May 31 (Sunday), 2026.

The 'Miyuki' guest room in the main building, a Registered Tangible Cultural Property

Since its opening in 1947 (Showa 22), Sanyo-so has preserved its charm through the ages. To mark the 100th year of Showa (if the Showa era had continued, 2026 would be Showa 101), we have prepared a special stay that allows guests to feel the atmosphere of yesteryear. Accommodation is in the 'Miyuki' guest room of the main building, a Registered Tangible Cultural Property. Built in 1957 (Showa 32), it is a prestigious space that has welcomed many honored guests. You can enjoy a relaxing time in a tranquil space surrounded by historical designs. The garden is a strolling Japanese garden created by Jihei Ogawa. Please enjoy a stroll through the garden, which shows different expressions each season, and the tranquility brought by the free-flowing hot spring.

Japanese Garden

Women's large communal bath

For dinner, kaiseki cuisine reconfigured based on menus from the Showa era will be served in a private room of the main building, which was built in 1929 (Showa 4) as the villa of Mr. Hisaya Iwasaki. Additionally, upon request, guests will be guided through the main building, a Registered Tangible Cultural Property, the new building designed by Togo Murano, and the Japanese garden. Japan's beauty and hospitality remain timeless. Please enjoy a special moment touching the memories of the Showa era.

Dinner image

Features of the Sanyo-so Showa-era Guest Hospitality Accommodation Plan

●Kaiseki cuisine reconfigured based on Showa-era menus will be served in a private room of a Registered Tangible Cultural Property.

●Guests will be guided through the main building, a Registered Tangible Cultural Property, the new building designed by Togo Murano, and the Japanese garden by a guide.

'Sanyo-so Showa-era Guest Hospitality Accommodation Plan' Overview

【Period】May 6 (Wednesday) - May 31 (Sunday), 2026 *Bookings start April 6 (Monday)

【Content】1 night with dinner and breakfast, meals in a private room of a Registered Tangible Cultural Property, accommodation in the 'Miyuki' guest room of the main building

【Price】From ¥59,000 per person when 2 guests use one room

*Price includes service charge and consumption tax.

【Inquiries】TEL: 055-947-1240 (Direct booking line) *Reception hours: 9:30 A.M. - 5:30 P.M.

【Example Stay】

●3:00 P.M. Check-in

The 'Miyuki' guest room in the main building, built in 1957 (Showa 32).

Step into a historically rich ambiance for a special stay.

●4:00 P.M. Enjoy the free-flowing hot spring

Relax and rejuvenate your mind and body in the Izu Nagaoka Onsen. Enjoy a healing moment in the large communal bath or the free-flowing hot spring in your room.

'Miyuki' guest room in the main building

●6:30 P.M. Dinner in a private room of a Registered Tangible Cultural Property

Kaiseki cuisine reconfigured based on Showa-era menus will be served in a private room of a Registered Tangible Cultural Property.

Enjoy the flavors that evoke the atmosphere of that era in a space nurtured by history.

●Next 8:00 A.M. Breakfast in a private room of a Registered Tangible Cultural Property

Enjoy a colorful twelve-section bento while admiring the Japanese garden.

Dinner image

●9:30 A.M. Guided tour of Sanyo-so

A guide will show you around the main building, a Registered Tangible Cultural Property, the new building designed by Togo Murano, and the Japanese garden. (If you wish to join, please inform us when making your reservation.)

●11:00 A.M. Check-out

Japanese Garden

【National Registered Tangible Cultural Property】

The Sanyo-so main building was constructed in 1929 (Showa 4) as the villa of Mr. Hisaya Iwasaki, the eldest son of the founder of the former Mitsubishi zaibatsu, Yatoro Iwasaki, as an elegant sukiya-style Japanese architectural residence within a magnificent Japanese garden created by Kyoto gardener Jihei Ogawa. In June 2017 (Heisei 29), it was registered as a Tangible Cultural Property by the Agency for Cultural Affairs as a valuable national asset.

Registered Tangible Cultural Properties: Entrance/Tea Room building, Guest Room building, Central building, Living Room/Study building, Miyuki-no-Ma, Waiting room, Roji Gate

Guest Room Building: Current Old Pine

Entrance/Tea Room Building: Current Main Building Entrance, etc.

*Images are for illustrative purposes only.

*Content is accurate as of the release date (April 3) and may be subject to change.