Overview

Onyado Sakaya is a historic hot spring ryokan in Yoshina Onsen, in the Amagi area of Izu. With more than 500 years of history, this former sake brewer keeps a strong connection to water, craft, and the quiet mountain setting around it. You stay in a place long loved by writers, artists, and people drawn to Yoshina’s soft, source-flowing hot spring water.

The ryokan is known for its rare 100% source-flowing baths. The hot spring water is used without added water, heating, circulation, or chlorine, and the temperature is managed through a blend of three natural sources. You can enjoy six different baths, local Izu and Amagi cuisine, rooms with private hot spring bathing options, and a nostalgic building filled with artwork, old stories, and the sound of the Yoshina River.

Accommodation

You can choose from five room styles, including the classic Tateyamaso special room, rooms with private open-air baths, semi-special rooms, standard open-air bath rooms, and standard Japanese-style rooms in Youkirou. All room types are Japanese-style and include a washlet toilet and an indoor bath, with some rooms adding private open-air hot spring baths.

Tateyamaso is a special room built in 1953 using fine wood from the ryokan’s own mountain forest, including mulberry, pine, cedar, persimmon, and cherry. You stay in a two-room Japanese layout with a garden view, old glass windows that softly distort the scenery, wicker chairs on the veranda, and a hinoki indoor bath supplied with hot spring water. This room is for ages 13 and over, and some plans allow in-room dining for up to two people.

Kaede-no-Ma is the open-air bath special room within Tateyamaso. It has two Japanese rooms, a wide veranda, a large private open-air bath, and a hinoki indoor bath supplied with hot spring water. The open-air bath faces the Enshu-style Japanese garden and is large enough for a more spacious soak.

In Youkirou, Maruyama is a semi-special room with two separate Japanese rooms connected by a short stepped corridor. It includes a private open-air bath with mountain views, a shower room, larger wash areas, and space that works well when you travel with family or a small group. Hanazawa and Kaneuchino are standard open-air bath rooms with a 10-tatami Japanese room, a moon-view deck, a private hinoki open-air bath, and an indoor bath supplied with hot spring water. The standard Youkirou rooms offer a bright south-facing 10-tatami Japanese room with mountain views, wide windows, an indoor bath supplied with hot spring water, and a simple, relaxed atmosphere.

Your room includes the essentials for a comfortable ryokan stay, such as a refrigerator, safe, tea set, yukata, towels, basic bath items, and simple in-room conveniences.

Dining

Dining at Onyado Sakaya focuses on Izu’s mountain and sea ingredients, prepared with clear Amagi water. Meals are not built around a standard ryokan style. Instead, you choose between two main dinner experiences: a creative kaiseki course with seafood and local vegetables, or a gibier-style meal centered on wild boar and mountain ingredients.

The creative kaiseki course, Amagigoe, brings together ingredients from Suruga Bay and the Amagi area. You may enjoy sakura shrimp, Akaza spiny lobster from Heda Port, local fish, fresh vegetables, and seasonal dishes served slowly in small portions. This course suits you well when you want a gentler dinner with seafood, vegetables, and careful presentation.

The ryokan’s signature gibier dish is Daimyo-yaki, named by the artist Taro Okamoto. Thin slices of wild boar, pork, and beef are placed over plenty of Amagi vegetables, steamed together, and enjoyed with a special ponzu sauce. It has a lively, mountain-style feel and works well when you want a heartier meal at your own pace. From September to May, you can also enjoy the Amagi specialty inoshishi nabe, a wild boar hot pot prepared with a secret miso-based sauce that takes a week to make. Wasabi nabe is another Sakaya original, made with Izu fish, black hanpen, pork, tofu, shellfish, Amagi shiitake, beef tendon broth, grated daikon, and fresh wasabi.

Breakfast centers on Sakaya’s long-loved Oyakata Nabe. This warm morning hot pot includes Amagi vegetables, shiitake mushrooms, Yoshina tofu, sardine tsumire, Nagoya kishimen noodles, and suiton dumplings in a bonito-based broth. You also enjoy Izu-style side dishes such as tuna with grated yam, dried horse mackerel from Numazu, local hijiki, handmade konjac dengaku with homemade Hatcho miso, crab miso soup, pickles, and local rice.

Onsen and Wellness

Yoshina Onsen is one of Izu’s oldest hot springs, with history linked to Zenmyoji Temple and records dating back to the Nara period. The water at Onyado Sakaya is used as 100% source-flowing hot spring water, without added water, heating, circulation, or chlorine. The ryokan blends three sources, Oyugawa, Hanazawa, and Susugaki, to keep the temperature comfortable while preserving the natural water quality.

The spring is a weak alkaline simple hot spring with a pH of 7.6. The water is clear, almost odorless, gentle on the skin, and known for a soft, smooth bathing feel. It is associated with relief from neuralgia, joint pain, digestive concerns, women’s health concerns, skin smoothness, and tiredness. The source temperatures are 45.3°C, 47.0°C, and 65.5°C, and the combined spring flow is 425 liters per minute.

You can enjoy six baths with different atmospheres. The two large public baths are Omansan Bath and Taro-san Bath. Omansan Bath is linked to Lady Oman, a consort of Tokugawa Ieyasu, and has a deep hinoki and Izu stone bathtub with mountain and green views. Taro-san Bath was designed by Taro Okamoto, who stayed at Sakaya for many years, and its curved shape naturally fits the body.

The two open-air baths are Orion Bath and Shirafuji-no-Yu. Orion Bath looks toward the Amagi mountains, has a partial roof, and includes a reclining bath area where you can look up at the moon and stars. Shirafuji-no-Yu has a rare boxwood bathtub, a small garden view, wind protection, handrails, and a white wisteria tree that blooms overhead in season.

The two private open-air baths are Sake Barrel Bath and Kodakarano-Yu. They are free, open 24 hours, do not need a reservation, and can be locked from inside when available. These baths are simple soaking baths without soap or washing items, so use them for quiet private bathing in the open air.

Guests with tattoos

Onyado Sakaya has shared public baths that switch by time and gender, as well as private open-air baths that lock from inside. If you have tattoos, use the private open-air baths or choose a room with its own hot spring bath for a more comfortable and private soak. The private open-air baths are free, available 24 hours, and do not need a reservation.

Facilities

Onyado Sakaya has a first-floor lobby with sofas and rocking chairs, a small tea room called Yojuan, Tearoom Seseragi, a shop selling original local sake and pottery by local artists, a fifth-floor lobby called Jack and Beanstalk, an Enshu-style Japanese garden, an indoor bridge over the Yoshina River, an Okamoto Taro gallery that also works as a meeting room, a seasonal outdoor pool, dining rooms, banquet rooms, and meeting spaces. The building also has a mini table tennis and mini billiards table in the lobby, cold water and tea in the fifth-floor lobby, and corridors with artwork, calligraphy, and traces of people connected to the ryokan’s long history.

The dining spaces include private rooms, Japanese-style seating, chair-and-table seating, and irori-style arrangements that use gas equipment for safety. Banquet rooms can be arranged for small to large gatherings, and the whole ryokan can also be used for private group stays. For babies and children, you can request items such as a baby bath, baby soap, diaper bucket, children’s chairs, bouncer, Bumbo chair, milk pot, microwave use for baby food, and children’s tableware. For easier movement, the ryokan has an elevator, movable ramps, one rental wheelchair, a barrier-free lift in part of the building, some handrails, and chair-and-table dining arrangements with advance request.

Activities

You can enjoy seasonal and local experiences around Yoshina and Amagi. From late May to early August, the ryokan runs a firefly bus when conditions allow, taking you to nearby firefly spots during the evening. In summer, you can use the ryokan’s outdoor pool, which includes a shallow children’s area and also uses hot spring water.

Nearby, you can try pottery in Yoshina, visit glassblowing studios in West Izu, go river playing at Suiren-dori Hiroba, enjoy strawberry picking from winter to spring, and try blueberry picking in summer. The Amagi area is also known for autumn colors, especially around Amagi Mountain and Hacchoike, with beautiful foliage from late autumn into early winter.

For sightseeing, you can visit Joren Falls, the Odoriko Trail, the Old Amagi Tunnel, Namesawa Valley, and Zenmyoji Temple. Zenmyoji Temple is closely linked with the history of Yoshina Onsen and its long-standing reputation as Kodakarano-Yu. If you are interested in the temple blessing connected to this tradition, prayer arrangements can be made through the ryokan.

Additional Features

Onyado Sakaya gives you 100% source-flowing hot spring bathing, six different bath experiences, and private open-air baths available 24 hours a day. Some rooms also include private hot spring baths, so you can enjoy the water at your own pace.

Your stay can include Izu and Amagi dining, creative kaiseki, gibier cuisine, and the ryokan’s Oyakata Nabe breakfast. The property also offers baby-friendly support items, partial accessibility support with advance request, a seasonal firefly bus, a summer outdoor hot spring pool, an Okamoto Taro gallery, group spaces, banquet rooms, and free parking.

Check-in is from 15:00 to 17:00, and check-out is by 10:00. From Shuzenji Station, you can reach the ryokan by taxi in about 15 minutes, or by Tokai Bus in about 20 minutes to Yoshina Onsen Entrance. Pickup is available after arrival during set hours.