Re-opened in 2019 after a full renovation

Numajiri Kogen Lodge

Stay in this vacation home like villa surrounded

by a treasure trove of nature

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Ookawaso is an inn with a 60 years history in Ashinomaki Onsen of Aizu region, took over an inn once run by mountaineer Atsuko Tabei, re-opened the lodge in 2019 after a full renovation. Located in Bandai Asahi National Park where mountains, lakes and forests weave together; the source of the hot spring is a sulphur spring that gushes out from a valley near the crater of Mount Adatara. Mount Adatara's acidic spring with a pH of 2.1 is rare in Japan. You can enjoy the free-flowing hot spring water which has many health benefits. Enjoy a stay in a villa-like lodge in the nature surrounded by famous springs, a famous waterfall and famous mountains.

  • ​​This hotel is only available for adults including junior high school students and above.


Organic dishes served on unique one-of-a-kind traditional dishwares

The ingredients are carefully selected from four local farms within Numajiri. Savory seasonal dishes are created based on seasonal produces. All seasonings such as the soy sauce and miso are organic; making it a safe and healthy ingredients that are also pesticide-free. Original cooking dishwares are made of the traditional Aizu lacquerware and Hongo pottery of Aizu. Indulge in a healthy meal made out of Aizu's local specialties and served on unique one-of-a-kind traditional dishware.


Suite room


This is the only twin room at Numajiri Kogen Lodge with a half open-air bath where you can enjoy the hot spring water all to yourself. The bed area was made half floor lower to make it more spacious with high ceiling.

【40.5m² 1-2 guests】

Special room


This large room has a spacious sofa with two window sides with a view of Numajiri's nature. This room is recommended for those who want to spend a relaxing time in the room.

【28.3m² 1-2 guests】

Sir Hillary's Room


Sir Edmund Hillary, the mountaineer who succeeded in becoming the first person to climb Mount Everest stayed in this room. The room has been renovated with a space that preserves the memories of Sir Edmund Hillary, while retaining the warmth of the lodge's original wooden form. The room is decorated with photos from that time.

【14.8m² 1-2 guests】

Standard twin (with shower room)


This room is designed with wooden interior. The room looks very simple yet it provides the feeling of warmth and comfort. Escape from the hustle and bustle of the city for a special time in this quiet room.

【From 23m² 1-2 guests】

Standard Twin (no shower)


This room is designed with wooden interior. The room looks very simple yet it provides the feeling of warmth and comfort. This room has no shower room.

【From 13.3m² 1-2 guests】


Access :

By train

  • 20 minutes by taxi from Inawashiro Station on the JR Ban-etsu West Line

By car

  • Approximately 15 km from the Inawashiro Bandai-Kogen IC on the Ban-etsu Expressway Parking: Available (free)


Please read the following before you proceed to the reservation.

Additional information

  • The rates do not include the transportation fee between the accommodation and your residence.

  • Check-in time is at 15:00, and check-out time is at 10:00.

  • Your booking confirmation will be sent within 1-2 business days.

  • We will ask you to complete the payment after the booking has been confirmed.

  • You may be asked to present your residence card as proof of identification upon check-in.

  • Please be sure to check "the Go to Travel compliance policy" in advance.

Cancellation policy

  • From 3 to 2 business days prior to the reserved date: 30% of the total amount

  • 1 business day prior to the reserved date: 50% of the total amount

  • On the reserved date or no show: 100% of the total amount