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Gunma Shibukawa City

Hotel Kogure

A long-established inn that holds one quarter of Ikaho's Golden Hot Spring, where you can enjoy an overwhelming 1,300-tsubo bath complex

  • Ikaho Onsen
  • Scenic View
  • Onsen Ryokan
  • Reserved onsen available
  • Natural Hot Spring
  • Free-flow from source
  • Auto löyly available
  • Finnish sauna

About Hotel Kogure

"Ikaho Onsen Hotel Kogure" is a long-established ryokan with a proud history dating back to the Tensho era. It holds about one quarter of the total flow of Ikaho's precious Golden Hot Spring, and boasts an overwhelming volume of water exceeding 1,000 liters per minute. In the 1,300-tsubo bath complex, one of the largest in northern Kanto, there are Sennraku, with its charming garden open-air bath, and Sennyu, with its beautiful stone pillars, and guests can tour 26 varied baths in a women-and-men alternating schedule. Each large public bath is equipped with a superb auto löyly sauna and an open-air cold plunge bath.

Hot SpringONSEN

Free-flow from source

Large Public Bath Sennraku (Golden Hot Spring)

A bath complex surrounded by greenery where you can lavishly enjoy the overwhelming Golden Hot Spring in completely free-flowing natural spring form, as only a long-established inn with more than 400 years of history can offer. The bath tubs are 1 meter deep, and you can enjoy the famous standing bath, where you can experience the buoyancy of the water and promote blood circulation throughout the body at the same time, as well as the reclining bath with a view of the mountain ranges, the seated bath where you can sink in comfortably, and the garden open-air Kannon bath, among 11 unique bath types in total.

Free-flow from source

Large Public Bath Sennyu (Golden Hot Spring)

A bath complex proud of its wild and natural atmosphere, with a dynamic rock open-air bath created using large natural rocks without stint, and the Stone Stair Bath surrounded by beautiful cut stone pillars. In addition to the completely free-flowing Golden Hot Spring, which wraps the skin gently and warms you to the core, you can tour and enjoy 10 varied beauty baths, including the Silky Bath, where fine bubbles make the skin smooth, and the bubble bath.

Free-flow from source

Private Observation Baths: Ureshino-yu, Iyashi-no-yu, and Utsukushino-yu

Highly luxurious private observation rental baths overlooking a magnificent panorama of Mount Tanigawa and the Mikuni mountain range. In addition to enjoying the fresh, completely free-flowing Golden Hot Spring, Utsukushino-yu in particular also comes with a private sauna, which is extremely rare for a rental bath, a low-temperature spring-water jacuzzi ideal for cooling down after bathing, and a room, allowing families and couples to monopolize the ultimate hot spring totonou experience without worrying about anyone else around them.

SaunaSAUNA

01SAUNA

Sennraku Rakuen View Sauna

Men'sWomen's

A scenic sauna adjoining the open-air area of the Sennraku large public bath, where you can look out through large windows at a beautiful garden. It is kept in a mild, comfortable temperature range, and auto löyly, conducted once every 10-odd minutes, fills the room with moderate humidity and pleasantly warm air. Surrounded by the scent and warmth of wood, you can relax amid the lush greenery of the garden and fully enjoy a healthy sweating experience at your own pace.

02SAUNA

Sennyu Water Ceremony Sauna

Men'sWomen's

A new-style Water Ceremony Sauna installed in the Sennyu large public bath, featuring beautiful light-and-water effects. Here too, once every 10-odd minutes, auto löyly (hot-air convection) takes place together with the lighting effects, and the pleasant heat of the water vapor helps enhance skin moisture and beauty benefits. While the temperature design is relatively gentle and mild, löyly supports perspiration well, allowing you to enjoy a comfortable sauna session.

Cold BathCOLD BATH

01COLD BATH

Sennraku Open-Air Cold Plunge Bath

Men'sWomen's

A highly luxurious open-air cold plunge bath located just outside the sauna room in the Sennraku garden open-air bath. It lavishly uses mineral-rich, fresh natural water springing from Kogure's own mountain forest, and its feel on the skin is exceptionally clear and smooth. After the sauna, you can sink in up to your shoulders while breathing in the pleasant open-air atmosphere, leading you to a refreshing cool-down and the ultimate state of totonou.

02COLD BATH

Sennyu Open-Air Cold Plunge Bath

Men'sWomen's

A cold plunge bath prepared in the open-air area of the Sennyu garden open-air bath. It is also filled with high-quality cold water made from boiled spring water rich in minerals, and it has no chlorine smell, making it extremely gentle. It cools down your heated body after the sauna in a crisp, refreshing way. Right in front of the cold plunge bath, there are chairs and benches for a pleasant outdoor air bath, allowing you to fully enjoy an utterly luxurious open-air alternating bath cycle while feeling the clear mountain breeze of Joshu.

Facility Information

Address
135 Ikaho, Ikaho-machi, Shibukawa-shi, Gunma 377-0102
Business Hours
14:30〜00:00/05:00〜10:00

[Large public baths] 2:30 PM–12:00 AM, 5:00 AM–10:00 AM. Men use Sennraku from 2:30 PM–12:00 AM and Sennyu from 5:00 AM–10:00 AM. Women use Sennyu from 2:30 PM–12:00 AM and Sennraku from 5:00 AM–10:00 AM (alternating schedule). *The open-air baths and saunas are available until 11:00 PM (saunas are closed in the morning). *Day-use bathing is not available.

Closed Days
Open Year-Round
Gender Access
Gender Separated
Tattoo Policy (Communal Bath)
Unknown (Please Check)
Official Website
View official site

Access

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52

A curator who has visited over 300 facilities nationwide handpicks 52 exceptional ones they wholeheartedly recommend. The only guidebook that deeply explores the allure of onsen and sauna—plus culture and etiquette.

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JAPAN ONSEN COLLECTION
JAPAN ONSEN COLLECTIONJapan's Finest Onsen & Sauna
A journey through 52 renowned hot springs and saunasJAPAN ONSEN & SAUNA GUIDE

Japan's Finest Onsen & Sauna

52 Extraordinary Destinations

A curator who has visited over 300 facilities nationwide handpicks 52 exceptional ones they wholeheartedly recommend. The only guidebook that deeply explores the allure of onsen and sauna—plus culture and etiquette.

300+Facilities
Visited
Read a free previewJAPAN ONSEN & SAUNA GUIDE