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伊古奈荘 Ikonaso

casual Ryokan/Inn Go To トラベル対象
Ikonaso / Shizuoka Nakaizu 1


A small inn with 13 rooms in Izunagaoka.
We welcome one with hospitality from our hearts.

Ikonanoyu, a natural hot spring with a thousand years of history.
One of the sales point of this hotel is a newly introduced "Bad Gastein" radon bath.
Natural radium ore which releases low dose of radiation and has high effect on improving one's physical conditions is used.
Why not enjoy a moment of relaxation by leaving one's body in the hot water.

Meals are served using the blessings of the mountains and seas, allowing one to feel the four seasons.
One can enjoy dishes from traditional Japanese cuisine based on "Chakaiseki".
Please do not hesitate to taste once in a lifetime dishes.

Guest rooms where the best are gathered, are purely Japanese style filled with emotions.
Depending on the type of room, the view of the garden changes. Rooms are a healing space where one can feel the four seasons.

Hot springs, food, space that provide relaxing healing.
Why not spend a relaxing hot-spring trip at Ikonasou.      
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  • Rooms (-)
  • Plan (-)


Relux grade


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

Overall Rating(18 reviews)


















Other Facilities4.0/5

Mr./Ms. N.I(24)

Total points

Stayed in

Room type


Garden and Outdoor Bath Room Fukuju

夕・朝食は美味しいものばかりで大満足でした。 特に舟盛りのお刺身が新鮮でボリューム満点でとても美味しかったです。 お風呂も小さい方の貸切風呂は湯温がかなり高めでしたが、それ以外は気持ちよくお肌もツルツルになりました。 ただ、お部屋が少... Read more 夕・朝食は美味しいものばかりで大満足でした。 特に舟盛りのお刺身が新鮮でボリューム満点でとても美味しかったです。 お風呂も小さい方の貸切風呂は湯温がかなり高めでしたが、それ以外は気持ちよくお肌もツルツルになりました。 ただ、お部屋が少し残念でした。夜中寒くエアコンを付けると、お掃除ランプが点滅しており暖房はとてもカビ臭くて使えませんでした。他の場所はコロナ対策も徹底されていて非常に印象が良かったのですが。 布団も硬めで快眠する事は出来ず。 また、チェックアウトのお会計に夕食時の頼んでいない飲み物代金が含まれおり、その旨を伝えるとすぐに修正していただけましたが、そこは管理を徹底された方が良いと思います。(夕食を担当されていたスタッフさんの人数が少なくかなり忙しそうな雰囲気だったので、ごく稀なミスだとは思いますが。) スタッフの方々はみなさんとても愛想が良かったので、少しトラブルはありましたが全体的に気持ちの良い滞在時間を過ごせました。ありがとうございました。

The evening and breakfast were all delicious and I was very satisfied. Especially, the sashimi in the boat was fresh and full of volume, and it was very delicious. The temperature of the private bath, which is smaller than the bath, was quite high, but other than that, my skin became smooth and comfortable. However, the room was a little disappointing. When it was cold at night and I turned on the air conditioner, the cleaning lamp was blinking and the heating was very musty and could not be used. I was very impressed with the thorough measures against corona in other places. The futon is also hard and I can't sleep well. Also, the checkout checkout included an unsolicited drink price at dinner, and I was able to correct it as soon as I told him that, but I think it's better to manage it thoroughly. (I think it's a very rare mistake because the number of staff members who were in charge of the dinner was small and the atmosphere seemed to be quite busy.) The staff members were all very friendly, so I had some trouble. However, I was able to spend a pleasant stay overall. Thank you very much.

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Mr./Ms. K.H(Private)

Total points

Stayed in

Room type


Japanese Room with Private Bath Kajo


I had dinner changed to a room out and I was able to relax. I felt the goodness of hospitality. I still want to use it. The quality of the hot spring was very good and my wife was happy.

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Mr./Ms. A.S(38)

Total points

Stayed in

Room type


12 Tatami mat Japanese Style Room + Indoor hot spring bath (Ryokusui 205、Hakuun 206)

貸切風呂二つと大浴場全てに入りましたが、貸切風呂の小だけ湯温が高く、他二ヶ所はちょうど良くのんびりゆっくり浸かっていられる湯温でした。どのお風呂場にもタオルが置いてくれてあり、タオルを持って移動しなくて済んでありがたかったです。 お部屋も... Read more 貸切風呂二つと大浴場全てに入りましたが、貸切風呂の小だけ湯温が高く、他二ヶ所はちょうど良くのんびりゆっくり浸かっていられる湯温でした。どのお風呂場にもタオルが置いてくれてあり、タオルを持って移動しなくて済んでありがたかったです。 お部屋もお風呂場もアメニティが揃っていてよかったです。 スタッフの方も温かく気持ちの良い接客でした。 お食事だけ、もう少し、というところでした。舟盛りはとても豪勢で美味しくいただきました。ボリュームはじゅうぶんでした。 感染症対策もされており、安心して過ごせました。

I entered two private baths and all of the large public baths, but the temperature of the small private bath was high, and the temperature of the other two was just right, soaking slowly and slowly. Towels were placed in every bathroom, and I was grateful that I didn't have to carry them with me. It was good that both the room and the bathroom had amenities. The staff was also warm and pleasant to serve customers. It was just a meal, a little more. The boat heap was very gorgeous and delicious. The volume was enough. Infectious disease countermeasures were also taken, so I was able to spend my time with peace of mind.

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Kona 243-3, Izunokuni City, Shizuoka Prefecture [View map]

check-in / check-out time

14:00 / 10:00

CI/CO time may be different depending on plan.

Credit card


Number of guest rooms

13 room(s)


Please enjoy these one in a lifetime dishes from traditional Japanese cuisine based on "Chakaiseki".
For individual guests, dinner and breakfast meals will be prepared and served at the banquet hall or dining hall. In addition, for guests on the 1st floor guest rooms, if one wishes, one can order a delivery to the room (charged). A la carte dishes are also available.

《Example of Menu》
Appetizers, soup-type appetizer, raw fish slice plate, a dish of fish and vegetables, grilled food, fried food, vinegared dish, white rice, food boiled down in soy sauce/ miso soup, dessert.
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The hot spring of Ikonasou is a hot spring with a history of 1000 years, and makes an appearance as a epithet's bath in Azuma.
 Men's hot spring · Female hot spring · Co-sex outdoor hot spring · Private outdoor hot spring attached to accommodation facility. For the first time in accommodation, "Bad Gastein" radon bath has been introduced!

【Hot Spring qualities and effects】 
The hot spring is a simple alkaline spring and is effective against neuralgia, muscle fatigue, frozen shoulder, gastrointestinal infirmity, etc. There are many effects of the hot spring.
According to guests who have immersed in the hot spring, their skin become smooth and receive a lot of compliments.

◎Large Bath House
There are 2 large bathhouses of Ikonasou that offer outdoor hot springs and traditional Japanese seafood cuisine - Tachibananoyu and Tsubakinoyu. The large bath house are separated by gender.
The large bath house usage time is from 6:00-24:00.

◎Outdoor Hot Spring(Male Female Separate)
We have an outdoor hot spring for both men and women.
For guests who want to fully enjoy the hot spring feeling, this is for you.
The outdoor hot spring usage time is from 6:00-24:00.
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Other facility information

【Amenities and Equipment】
Bath towels are in the changing room and one can use as many dry and clean things as one likes.
In the room there are amenities such as yukata, bath towel, face towel, toothpaste, hair cap, shaving, cosmetics, hair dryer etc.

【Guest room furniture】
Television, Air conditioning, Telephone, Refrigerator, Tea set (hot water pot), Night set (hot and cold water pot), Washlet toilet

【Rental Goods】
Simple bed, High seat chair, Mahjong set, Shogi · Go set

【Service Coffee】
In front of the store, there is service coffee prepared.
(Free and self-service)
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Requests to Customers for New Coronavirus Measures:

As a measure to prevent new coronavirus infection, we will operate as follows for the time being.

(Head office)
Open only for day trip bath
From Wednesday, April 15
* Stop using the outdoor bath

(Nagaoka store)
Only stay overnight
From Tuesday, April 21
* Stop using the outdoor bath

From April 13 (Mon) to May 6 (Wed)
It will be temporarily closed.
Reservations for new customers will be canceled until May 31st.

We sincerely apologize for the inconvenience, and we appreciate your understanding and cooperation.

Customers who have already made a reservation will be contacted in order.

We will return to normal business as soon as the new coronavirus is over, so we would appreciate your favor.

(General guest room)
All rooms have a bath and wash toilet.
The smallest room has more than 12 tatami mats.
 You can forget the busy days and feel the healing time in the calm Japanese-style room.

(Room with open air)
All of the rooms are on the 1st floor, and the open air of the rooms is naturally filled with the natural hot springs of Kona.

(Hospitality to Mr. Silver)
Entertainment goods
We have a go board, shogi board, and mahjong that you can prepare in your room so that you can spend a leisurely day in the hot springs.

Seats and beds available
We will prepare a high-chair chair for those who find it difficult to have a cushion in their room. The number is limited, so please let us know when you make a reservation.
If you do not have a bet, we will prepare a simple bet for those who are not good. Please note that some rooms are not available due to the limited number of rooms, so please inquire when making a reservation.
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【Regarding Cancellation】
The full cancellation fee will be charged from three days in advance.
 However, cancellation fee will not be charged for a rebook within 30 days.
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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.

◆For travel by train
From Tokyo or Nagoya Area
① Both JR Normal Line and Shinkansen Line. Reach JR Mishima Station, change to Izakayama Railway, get off at Izunagaoka station, 15 minutes on foot from the station.
② 5 minutes by bus(For Izunagaoka Hot Springs, or for Numazu, alight at in front of Izunokunishi Nagaoka Total Hall, 0 minutes walk) 
※ There is a shuttle service at Izunagaoka Station for check-in after 15:00.
Please inquire during reservation.
※ Information on Izu Hakone route bus service(Izunagaoka Station→in front of Izunokunishi Nagaoka Total Hall)
Here for more details

◆For travel by Izu Odoriko
Izu Odoriko runs from Tokyo Station · Shinjuku Station. Although there are few trains per day, it will arrive at Izunagaoka Station without having a need to change trains.
● Tokyo 9:00 Departure ⇒ Izunagaoka10:56Arrival 
● Tokyo10:30Departure ⇒ Izunagaoka12:26Arrival(Only on Saturdays and Holidays) 
● Tokyo12:00Departure ⇒ Izunagaoka13:56Arrival 
● Tokyo14:00Departure ⇒ Izunagaoka15:26Arrival(Only on Saturdays) 

◆For guests using a convenient direct bus 
A great deal with a convenient direct bus leaves Shinjuku to Izunagaoka on a daily basis.
 One way 2500 yen Two way 4500 yen Half price for children.
Here for more details

Kona 243-3, Izunokuni City, Shizuoka Prefecture

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