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Yukai Resort Unzen Toyokan

大江戸温泉物語 雲仙東洋館

Lodging
Unzen Onsen
Kyushu & Okinawa·Nagasaki
+81 50-3615-3456ooedoonsen.jp
Contact form

Day Use

Yes
15:00–23:59

Last entry is 22:00, though the bath itself stays open until 24:00. Entry may be turned away when it's crowded.

¥700

Towel rental costs an extra 330 yen. There's also a reservation-only plan that pairs bathing with a buffet dinner (17:00-21:30), which runs 3,600 to 6,200 yen for adults depending on the day.

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Capabilities

Mixed BathingNo

Shared bathing area for all genders

Baths are gender-separated (women's bath referenced separately in reviews); no mixed-bathing mentioned anywhere.

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

Cover required

DiningYes

Restaurant or dining open to visitors (not just hotel meal plans)

WashingYes

Shower, wash stations, soap and shampoo provided

A reviewer noted several cleanser dispensers in the bath were malfunctioning, which confirms wash amenities are provided even though upkeep was criticized.

TowelsYes

Towels available to rent or borrow

雲仙東洋館

Unzen Toyokan
沃
Iodine-bearing
Color
pale yellow-brown
Taste
slightly salty
Odor
faint hydrogen sulfide

Calcium-Sodium Iodide spring

Iodine-rich
Composition fingerprint0.2 g/kg dissolved · Hypotonic
Ca²⁺41
Na⁺21
Mg²⁺19
I⁻79
◀ CationsAnions ▶
Calcium Ca²⁺
settling and calming; can leave a white mineral bloom.
Iodide I⁻
yellows in air; helps blood lipids.
Known good for
  • Smooth skindry, rough skin
  • Recoveryfatigue, stress

An iodine-bearing spring defined by an unusually high iodide content — water that yellows on contact with air and carries a faint yellow-brown tint at the source. Weakly alkaline and soft on the skin, it shows a faint rotten-egg note of hydrogen sulfide and a slightly salty tang on the lips. Modest free CO2 and metasilicic acid round out a gentle, smooth feel. Iodine-rich waters are traditionally noted in connection with skin conditions, and the cert flags hyperthyroidism as a drinking caution for this water family.

環境調査株式会社

Explore the water

About

Unzen Toyokan is a large hotel-style bath facility in the Unzen onsen town, part of the Ooedo Onsen Monogatari (大江戸温泉物語) group. There's a big indoor communal bath, a separate outdoor bath, and a rooftop bath with a view out over the area, plus a sauna. Day-use bathing is walk-in with no booking, and a reservation-only plan pairs a soak with the buffet dinner. The hotel itself is older and priced accordingly; guests describe the shared areas as freshly renovated even though the guest rooms still show their age.

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SM
Sergey M
2 years ago

Yukai Resort Unzen Toyokan, Unzen (Pt.2 - upper baths) From there you can transfer to another elevator on a different floor and get to 5F. There are two baths: one indoor behind glass and a second outdoor one on a balcony (accessed through the indoor one). The view of the buildings is a bit worn (but for me that actually adds to the atmosphere of this place) and there's a clear view of water and mountains. The water feels similar to the lower bath. Likewise had it all to myself. Also highly recommended.

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SM
Sergey M
2 years ago

Yukai Resort Unzen Toyokan, Unzen (Pt.1 - entrance and lower bath) A relatively modern ryokan with lots of rooms. Went in the morning - they said day-use starts from 14:00, and both baths are available. 1,030 yen for entry and large towel rental. The elevator system is a bit confusing, but they give you a printed map. Went to the lower one on B1F - a big area with about 20 shower stations and a great view, with a wooden platform in the middle of the bath. The water is milky blue (but not super saturated in color), not much smell, standard water temperature. Had the whole place to myself the entire time. Highly recommend.

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Last updated August 5, 2026