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Umi no Niwa

casual Ryokan/Inn


Umi no Niwa is located right by Minami Boso, nature's treasure chest. 
The convenient location that gives you the best view as well as nearby sightseeing is a huge appeal. 

For rooms, we have Japanese style rooms that are unique to ryokan. 
You can select a room type that best fits your travel itinerary. 

We have 3 hot spring spas, each with its own vibe. 
The private outdoor spa "Umi no Toki" is available to reserve for free. 
The evening view you will see from this private atmosphere is sure to be memorable. 
You can fully enjoy yourself without a care in the world. 

Various dishes that use Kominato's fresh shellfish, and a sushi boat filled to 
the brim with the ocean's gifts are only some of the items you will enjoy in our seasonally changing dinners. 

Each traveler has their own style. 
We hope to answer to all.       
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Room types


Relux grade


Accommodations that have achieved high customer satisfaction and that can be enjoyed casually.

Overall Rating(10 reviews)


















Other Facilities4.0/5

Mr./Ms. K.M(65)

Total points:

Select Date:2019-03-18

この度は大変お世話になりました。 お部屋やお風呂など清潔感があり、また女将をはじめ従業員の方々の対応の素晴らしさに感謝です。そして何より料理の美味しさ、ボリュームには驚きです。キンメの煮付けを朝食に回して頂きましたが、それだけでもお腹いっ... Read more この度は大変お世話になりました。 お部屋やお風呂など清潔感があり、また女将をはじめ従業員の方々の対応の素晴らしさに感謝です。そして何より料理の美味しさ、ボリュームには驚きです。キンメの煮付けを朝食に回して頂きましたが、それだけでもお腹いっぱいになりそうでしたが、その他料理も美味しく食べすぎました。また機会がありましたら是非伺いたいです。

Thank you very much for this time. There is a sense of cleanliness in the rooms and baths, and I am grateful to the wonderfulness of the correspondence from the female generals and other employees. And above all the taste of the food, the volume is a surprise. I was allowed to use the simmered type for breakfast, but it seemed that I was full of food, but I also ate the other dishes too delicious. I would like to see you again if there is an opportunity.

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Mr./Ms. M.O(59)

Total points:

Select Date:2019-01-25

主人の誕生日祝いを兼ねて宿泊しました! 最高の旅行になりました! 夕食の最初に出てきた舟盛り 漁師町ならではの お魚の数々で もうテンション全快って感じでした。 出来れば 魚の名前説明だけではなく 掲示してくれていたら いいなぁた思... Read more 主人の誕生日祝いを兼ねて宿泊しました! 最高の旅行になりました! 夕食の最初に出てきた舟盛り 漁師町ならではの お魚の数々で もうテンション全快って感じでした。 出来れば 魚の名前説明だけではなく 掲示してくれていたら いいなぁた思いました。 出てくる料理工夫されたものから伝統料理まで目と舌で堪能しました。ご馳走さまでした。 次回は魚好きな子供たちも一緒に伺いたいです!

We stayed together for my husband's birthday celebration! It became the best trip! I felt it was completely tension full with a lot of fish unique to fishing boat fishermen town which appeared at the beginning of dinner. I thought that it would be nice if not possible to post not only the name explanation of the fish but also the fish. Outgoing cuisine I enjoyed it with my eyes and tongue from ingenuity to traditional dishes. It was a feast. Next time I would like to ask fish lovers who like it!

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Mr./Ms. T.H(47)

Total points:

Select Date:2019-01-26

夫と二人で利用しました。部屋の窓から見える景色に、普段の忙しさを忘れて心から癒されました。こたつに入ったのも何年ぶりか。この季節、加湿器も大変ありがたく使わせてもらいました。食事はパーフェクトです。露天風呂は、写真で見たのと違った印象だった... Read more 夫と二人で利用しました。部屋の窓から見える景色に、普段の忙しさを忘れて心から癒されました。こたつに入ったのも何年ぶりか。この季節、加湿器も大変ありがたく使わせてもらいました。食事はパーフェクトです。露天風呂は、写真で見たのと違った印象だったのと、内湯の洗い場が狭いのは仕方ないと思います。スタッフの方々の対応も丁寧で、リピートしたいお宿です。

I used this with my husband. I was healed from the bottom of my heart, forgetting my usual busyness, in the scenery seen from the window of the room. How long did you enter the kotatsu for a number of years? This season, humidifier was thankfully thankfully used. Meals are perfect. I think that it is unavoidable that the outdoor bath was an impression different from what I saw in the picture, and the washroom of the inside bath is narrow. The correspondence of the people of the staff is polite and you want to repeat.

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Umi no Niwa


169 Kominato, Kamogawa-shi, Chiba-ken  [View map]

check-in / check-out time

15:00 / 10:00

CI/CO time may be different depending on plan.

Credit card


Number of guest rooms

8 room(s)


Dining Area【Kura】

Enjoy dinner watching ships dock and leave the harbor. This spacious restaurant can seat up to 40 guests. 
Dinner and breakfast will be served at this 2F location. 
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【Umi no Tsuki】
There is a fish tank next to the bath.
Watch fish and crabs slowly swim about as you relax.
This bath is like an aquarium. The types of fish and crab in the fish tank depends on the season. 

【Umi no Hana】
The washing area is lined with tatami for minimal slipping. This is very safe for children. 


【Umi no Toki】
Look out to the sunset from the top most floor. Experience the ultimate relaxation. You can book a free 50 minute session. 

We take reservations starting from 8am the day of your stay
over the phone.
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Other facility information

Please contact the hotels/ryokans directly for more details.
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Kominato machi
 ・Kominata Tanjo-ji・Tai no Ura … 2min walk
 ・Moriya Beach(one of the clearest waters in Kanto Region)… 10 min by car
 ・Katsura Kaichu Park /Umi no Museum … 15 min by car
 ・Katsura Morning Market … 20 min by car
 ・Seicho-ji・Yomogi Fudono Falls … 15min by car
 ・Kamogawa Seaworld … 15min by car
 ・Uomizuka Observatory … 25 min by car
 ・Futomi Flower Center … 30 min by car
 ・Nomizo Waterfall … 30 min by car
 ・Mother Farm … 45 min by car
 ・Yoro Keikoku … 30 min by car
 ・Nojimazaki Lighthouse … 30 min by car
 ・Mount Nokogiri … 60 min by car
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・Please let us know your mode of arrival
・Please inform us if you plan to arrive past 5pm
・Please inform us of the age and gender of children if applicable(Only in rooms available for children)
・Please give us contact information we can reach you at the day of your arrival
・Please inform us of specific food preferences
*For children under 1yo there will be no fee, but please inform us of number and gender

・Bathing fee (150 yen) is not included
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  • Bath tax
  • Children allowed
  • Room service
  • Transportation service
  • Parking area
  • Hot spring
  • Fresh hot spring
  • Room with outdoor spa
  • Public spa
  • Private spa
  • Indoor pool
  • Outdoor pool
  • Esthe/Spa facility
  • Fitness facility
  • Barrier free
  • 5 min walk from station
  • Pets allowed
  • Breakfast in room
  • Dinner in room
  • Open air bath
  • Night view
  • Ocean view
  • Cottage
  • Coupon

The accommodation features are general descriptions of the facility. The amenities and breadth of service will differ between each accommodation. For details, please confirm directly with the accommodation.


Access by public transportation.

【From Tokyら】
Tokyo Station (Keiyo Underground Platform) → JR Sotobo line(Boso Express Train Wakashio → Awa-Kominato Statio 1.5h 

After 2:30pm, we will send pick up to Awa-Kominato station if you call us upon your arrival. 

169 Kominato, Kamogawa-shi, Chiba-ken

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