Oyado Tamaki

伊香保温泉お宿玉樹いかほおんせんおやどたまき

Lodging

Ikaho Onsen

Kanto·Gunma

0279-72-2232 oyado-tamaki.com

Day Use

Yes

MonClosed

Tue11:30–14:30

Wed11:30–14:30

Thu11:30–14:30

FriClosed

Sat11:30–14:30

Sun11:30–14:30

Closed during New Year period and on occasional unscheduled holidays.

¥1,500

Adults 1500 yen, elementary school children 1000 yen, toddlers (2+) 700 yen. Towel and bath towel included. Cash only.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Sauna room of any kind

Cold BathYes

Cold water plunge bath, typically used after sauna

Bathing Arrangements

Private BathYes

Private bath available for day-use visitors or hotel guests to reserve

Room OnsenYes

Private onsen bath in guest rooms, for overnight guests only

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

Можно только со стикерами

KidsYes

Welcomes children and families

DiningYes

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

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels available to rent or borrow

ParkingYes

On-site or nearby parking available

Water treatment

Lightly treated

from Article 18 disclosure

Added water
No
Reheated
Yes
Recirculated
No
Disinfected
Yes
銀イオン・オゾン滅菌
Bath additives
No

総合湯（混合泉）（伊香保温泉）

Sōgōyu Blended Source (Ikaho Onsen)

Operated by · お宿玉樹

Mixed source

硫

Sulfate

+ Bicarbonate · Chloride

High silica

Known good for

Aches & jointsstiff shoulders
Circulationtired legs
Warmingcold sensitivity

The bath draws Ikaho Onsen's Sōgōyu — a blend of the resort's wells — as a calcium-sodium sulfate/bicarbonate/chloride water. Sulfate gives the quiet body, with bicarbonate softness and a salty chloride edge layered over it; at roughly 1,180 mg/kg of dissolved solids it is moderately mineralized with noticeable substance. A generous 177 mg/kg of metasilicic acid places it in Japan's beauty-water family — silica of that order leaves the kind of thin film that makes skin feel smoother afterwards. The posting states the water is served undiluted and without recirculation, reheated only when it cools, and sterilized with silver ions and ozone for hygiene.

Analyzed Jul 18, 1997·社団法人群馬県薬剤師会

Explore the water

Views

Mountains

About

Oyado Tamaki sits close to the stone steps (ishidan, 石段) at the heart of Ikaho, one of the Kanto region's classic hot-spring towns. The inn draws from two separate springs: Kogane-no-yu (黄金の湯, the "golden water") and Shirogane-no-yu (白銀の湯, the "silver water"), each with its own character. Two large public baths, one with a view toward the Tanigawa mountains, both rotate between men and women each day and include open-air sections, sauna, and cold water. For more privacy there are two reservable baths, including an indoor one fed by kakenagashi (free-flowing, non-recirculated) Kogane-no-yu. A number of guest rooms also have their own onsen tubs piped with Shirogane-no-yu.

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2.0

1 review

Sergey M

8 months ago

786. Oyado Tamaki, Ikaho Onsen, Gunma I went for a day visit for ¥1500. The day visit is listed as 11:30~14:30 (except Mon and Fri). The baths alternate between men and women. There is tea in the changing room. There are two entrances, the main one and a back entrance, which the navigation app may also lead you to. The bath photos on the internet match the actual place. 1. Indoor bath with cloudy orange-brown water, temperature 40.5. It was fine to breathe inside. 2. Semi-open-air bath with a fence. The water is clear, temperature 42. 3. Separate outdoor wooden large barrel bath. There is no view, but through the curtain you can see the Ikaho steps. The water is clear, temperature 39. 12.01.2026