Sanyo-so (Ryokan)
Once the private villa of the Mitsubishi family, Sanyo-so is now one of Japan’s most serene hot spring retreats. It carries the quiet dignity of 1929 architecture alongside gardens that shift with each season. Inside, tatami floors, sliding screens, and open-air baths invite guests to slow down, while multi-course kaiseki dinners showcase the best of Japanese culinary tradition. Travelers are drawn here to celebrate milestones or simply immerse themselves in timeless, authentic Japanese experiences.
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Sustainability steps / SDGs (Sustainable Development Goals) Sustainability Initiatives of Sanyo-so
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Guest Rooms and Suites
We have Japanese rooms and more for you to enjoy the experience of a ryokan stay.
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Nearby Attractions
Izu Panorama Park
Take the seven-minute trip on the 1,800-meter ropeway to the summit. With an altitude of 452 meters, the summit offers have grand, panoramic, 360° views of Mt. Fuji, Suruga Bay, and Hakone.The …
Izu Mito Sea Paradise
Izu Mito Sea Paradise is an aquarium with a long history for Japan. It opened its door in 1930 as the Nakanoshima Aquarium. In its days as the Nakanoshima Aquarium, it was the first in the world to …
Hojoji-Temple
Temple founded by Hojo Yoshitoki (1163-1224), the second Hojo Shikken (regent), who was instrumental in the consolidation of the Kamakura shogunate (1185-1333).It is said that, before Minamoto no …
Sano Art Museum
The Sano Art Museum opened in 1966 with donations from Mishima-raised entrepreneur Ryuichi Sano. The exhibited artworks mainly consist of Asian arts and crafts like Japanese swords, bronze ware, …
Shuzenji Niji-no-Sato
A theme park that offers the enjoyment of flowers in all four seasons.Visitors can ride the Romney Railway and the Romney Bus around the park, which covers an area of 500,000 m2.They can also enjoy …
Mishima-Taisha Shrine
Mishima-Taisha Shrine has prospered since ancient times as the leading shrine in Izu Province. It is known as a shrine where Minamoto no Yoritomo prayed for divine assistance in restoring the …
Genbe River
The Genbe River is a canal that flows for 1.5 km from its source, the Kohama Pond in Mishima Municipal Rakujuen Park, through residential areas to the Nakazato Onsuichi Reservoir.It is one of the …
Numazu Goyotei Memorial Park
The main building of Numazu Imperial Villa was built in 1893 as a retreat for Crown Prince Yoshihito, the future Emperor Taisho.It was discontinued as an Imperial villa in 1969, after which it was …
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