Now loading...0%

伊古奈荘 Ikonaso

casual Ryokan/Inn
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.      
Read more

Room types


Relux grade


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

Overall Rating(13 reviews)


















Other Facilities3.9/5

Mr./Ms. S.I(34)

Total points

Stayed in

Room type


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

風呂の泉質が良く、肌がスベスベになります。 部屋も清掃が行き届いており、よかったです。 夕食の時に、おしぼりがなかったり、ご飯が冷えていたりで少し残念でした。 舟盛りは、美味しかったです。 また、貸切風呂は内風呂よりも、だいぶ湯... Read more 風呂の泉質が良く、肌がスベスベになります。 部屋も清掃が行き届いており、よかったです。 夕食の時に、おしぼりがなかったり、ご飯が冷えていたりで少し残念でした。 舟盛りは、美味しかったです。 また、貸切風呂は内風呂よりも、だいぶ湯温が高めでした。

The bath spring quality is good and the skin is smooth. The room was well cleaned and it was nice. It was a bit disappointing at the time of dinner because there was no hand towel or the rice was cold. The boat height was delicious. The private bath was much hotter than the indoor bath.

Read in English

Mr./Ms. Y.M(35)

Total points

Stayed in

Room type


16 Tatami mat Main Room + Outdoor hot spring bath + Attached Miniature Garden(Shokei 101、Matsukaze 102)


Only a small hotel with 13 rooms feels very good, the room is large, the service is good, and the meal is also very full. If you come to Nagaoka next time, you will definitely choose it.

Read in English

Mr./Ms. H.T(49)

Total points

Stayed in

Room type


Out Door Bath Special Room Jikishian

很古式的房間,房間也很,開了眼界,設計和服務也很好,職員可以作基本英語對答 生魚片大餐很好吃,很大機會再來 要注意的,房間好處沒有wifi ,要自行準備 還有是客房附有的露天浴池,比較接受後街的路面,可以聽日外面的對話聲

Very old-style room, the room is also very open, the design and service are also very good, the staff can make basic English to eat the sashimi and the big meal is delicious, a great opportunity to pay attention again, the room benefits no wifi, to Prepare yourself and have an open-air bath attached to the room. You can listen to the road on the back street and listen to the conversation outside the day.

Read in English





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.
Read more


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.
Read more

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)
Read more


【Normal Guest rooms】
All rooms are fitted with bathroom and washlet function toilet.
The smallest guest rooms are at least 12 tatami mats.
A calm and pure Japanese style guest room allows one to forget the hustle and bustle of everyday life, and to thoroughly enjoy a healing time.

【Guest rooms with Outdoor Hot Spring】
All of these rooms are on the first floor, overflowing with outdoor hot springs as well as natural stone hot springs.

【Hospitality towards senior guests】
◆Entertainment goods
In order for a relaxing day at the hot spring, we are preparing a go board, shogi board and mahjong that one can use in the room.

◆Seat chairs and beds are also available
For those who are a little bit uncomfortable with the cushions in the room, we will provide a high seat chair. As the number of chairs is limited, please inform us when making reservation.
For guests who require beds, we will provide a simple functional bed. However, some rooms cannot be fitted for the stated number of guests so please inquire when making reservation.
Read more


【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.
Read more


  • 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

Open in Google Maps

Contact the Relux concierge

Relux concierges will help you with anything you need. Feel free to contact us.

Concierge Offline


(JST Weekdays)

4 of people have viewed this page within the past 24 hours.

Welcome to Relux