Osawasawayama Onsen Osawadate, Minamiuonuma-shi, Niigata-ken Renovated and renewed in Japanese modern style & opened own homepage! Now accepting reservations with a 10% discount until December 19!

Osawasawayama Onsen "Osawadate" located in Minamiuonuma City, Niigata Prefecture, is a long-established onsen ryokan with a Japanese-style atmosphere, where you can enjoy high-quality hot spring water in a great natural location surrounded by the mountains of Uonuma.

However, due to the recent slump in customer traffic caused by the Corona disaster and lack of snow, Kojokan Co.

The entire facility, including guest rooms, entrance, and lobby, has been renovated in a modern Japanese style. The guest rooms, entrance, lobby, and all other facilities have been renovated in a modern Japanese style, utilizing the unique appearance of snow country architecture, and with an eye to both domestic and inbound visitors, the inn has been reborn as an attractive place where guests can enjoy Minamiuonuma's spring, summer, fall, and winter more than ever before with all five senses.

The renewal also marks the start of a new era as a hot spring inn where you can stay with your pet, a precious member of the family. A happy time to enjoy a trip together. Please spend a memorable time that you can only experience at Osawakan.

Official website: https://oosawakan.com/

Outline of renewal

Three room types, including guest rooms with hot spring baths and rooms that can accommodate pets.

The private open-air bath allows you to enjoy the hot spring in your own private space at any time of the day.

All-you-can-eat Koshihikari rice produced in Minamiuonuma. Original kaiseki meals made with local ingredients and a mix of Japanese and Western cuisine.

We have a restaurant where you can dine with your pets.

Laundry and pet foot-washing facilities are also available.

Exterior view

We offer three types of guest rooms: a fully renovated suite with a hot spring bath, a Japanese/Western-style room that combines Japanese style and Western comfort, and a Japanese-style room with two rooms. Pets are allowed in the two Japanese-style rooms, which are spacious and comfortable with a great view.

Special Room

Special rooms with a hot spring bath are available for guests with pets. Spacious and relaxing atmosphere.

VIP Room

A guest room with a hot spring bath. (Pets are not allowed)

Special room/Kihinmu Onsen (hot spring)

Special room/Keihin room with onsen (hot spring)

Japanese/Western style room

Japanese/Western style room. The view of the mountain from the window is artistic.

Japanese Style 2 Rooms

Two Japanese-style rooms (corner room) in a pure Japanese style with a great view and a spacious room where you and your pet can spend a relaxing time.

Lobby

The lobby is lined with books and knick-knacks related to Minami-uonuma, and offers a special view of the mountains of Uonuma.

■Private open-air bath at your favorite time. Enjoy a luxurious bath in a private space.

〈Open-air baths〉.

We have changed the two open-air baths that were previously available for men and women to private baths only at night and for men and women to use in the morning. You can reserve your favorite time and use the baths for approximately 50 minutes. The open-air baths offer a liberating view of the three mountains of Uonuma and Mount Makiki, one of the 100 most famous mountains in the world.

Open-air bath

Indoor bath

The bath is made of natural stone. The spring water is smooth and beautiful, leaving your skin smooth and refreshed. It is said to be effective for gastrointestinal disorders, eczema, and nervous disorders. It is also available as a one-day spa. (Please note that we may not accept visitors due to overcrowding.)

Indoor bath

Original kaiseki cuisine that mixes Japanese and Western ingredients with a focus on local ingredients is served.

For dinner, you can enjoy seasonal kaiseki cuisine that makes the most of local ingredients.

Of course, you can enjoy all-you-can-eat Minamiuonuma Koshihikari rice grown by our own farmers with great care. Please enjoy the local ingredients and tastes of Minami Uonuma, such as vegetables and wild plants nurtured by the nature of Minami Uonuma.

We also offer a wide selection of sake from local breweries, wines stored in snow country, craft beers, and other alcoholic beverages to go with your meal. Our staff are all sake lovers. We will be happy to suggest the sake of your choice.

Dinner

Local Sake

We have a dining area where you and your pet can dine together without being separated.

We have a large hall and private rooms where you and your pet can dine together without hesitation. (Reservations are required for private rooms.)

We also offer dog meals made with local ingredients such as wild game and vegetables. Six popular menus are available for both dinner and breakfast.

Private Room

Laundry and a place to wash your dog's paws are also available!

Laundry

Washing area

A foot-washing area is also available for those returning from a walk. Not only pets, but also outdoor and event equipment and shoes can be washed and dried, making it safe and convenient.

■Reservations are now being accepted for the Renewal Commemoration Plan.

To celebrate the reopening, we are offering a 10% discount for reservations made through our official website! Please take advantage of this opportunity.

Reservation period: ~December 19, 2025 (Friday)

For the official website, click here → https://oosawakan.com/

*Membership registration with the hotel is required.

*A special plan is also on sale, which can be reserved through various accommodation reservation sites. All rooms, including newly renovated rooms, are available.

Overview of Osawakate

Facility name: Osawadate

Location: 1170 Osawa, Minamiuonuma City, Niigata Prefecture

Number of guest rooms: 12

Hot spring: Separate men's and women's large public baths

　　　　　 Open-air bath

Access： 25 minutes by car from JR Echigo Yuzawa Station on the Joetsu Shinkansen Line.

　　　　　 15 minutes drive from Shiozawa Ishiuchi IC on Kanetsu Expressway

URL ： https://oosawakan.com/

Company Profile

Name: Kojokan Co.

Representative: Hiroshi Abe

Location: 1873 Ishiuchi, Minamiuonuma City, Niigata Prefecture

TEL/FAX: 025-783-2219／025-783-4789

Inquiry (Osawadate)

TEL：025-783-3773(Hours of operation: 8:00-20:00)