“A Holiday You Can Feel” — A Journey to Awaken Your Sixth Sense ---

  • This was my first time using IKYU. We decided on short notice to take an Onsen trip three days later (on a weekday), and an AI recommended IKYU, so I installed the app and searched. The Accommodation that came up with a last-minute discount was Koyu-ro Ikawa in Izu. I’ll say this upfront: I will definitely return. It was that wonderful.I believe it’s an older Ryokan that has been renovated, and I was truly impressed by the concept. It’s a triumph of spatial design. The entire building is kept softly dim, with skillful lighting creating a luxurious atmosphere, and carefully selected sofas are placed in the lobby. Together, these elements gently conceal the building’s age and create a gorgeous space where you can completely relax.It was also clear that every service and Facility—such as welcome drinks and the dessert buffet after dinner—had been thoughtfully planned and provided.What I especially want to highlight is the private open-air bath in a separate annex on the first floor. You can soak in an indescribably wonderful space, and that time left a powerful impression on me.Both dinner and breakfast were excellent.There is only one regret: while almost all staff were perfect (100 out of 100), when we arrived about an hour before the 3:00 p.m. check-in time, the young female staff member who came out from the back to assist us at reception was extremely disappointing. Her language wasn’t polite, and it made me feel as if we were being pushed out of the property. We pulled ourselves together and returned before 3:00 p.m., but everyone else was outstanding.

    日焼けした坊主頭 7/26/2026
  • The day before, I suddenly felt like going to an Onsen, so I looked for a nearby Accommodation with two meals included and found this place. Even though we arrived early, a female staff member greeted us outside and kindly guided us to the parking lot and helped carry our suitcases, which was very helpful. I had a few thoughts: I’d really like handrails added at the large public bath on the 7th floor; I wanted the dining area brighter during dinner; I wished there were a small table by the bed to place a phone or glasses (an outlet there would be even better); and since the platform used in place of a bed didn’t match the mattress size, I hit my shin on the part that stuck out—so please be careful. That said, both the Room and baths were kept very clean, and the food and desserts were delicious. Maybe because it was a weekday, I had the large bath and open-air bath all to myself all four times. The private bath was also very clean, and the incense was nice as well. With a last-minute discount we stayed at a great price, and one of the perks was checkout until 11:00, so we could relax. The value for money is excellent. I’d like to visit again.

    サリープロップ3 7/7/2026

Facilities and Services

See All
  • Hot spring
  • Spa facility
Open-air bath / Free-flowing hot spring / Large public bath / Private bath / Within a 5-minute walk to the convenience store. / Childcare services
IN15:00~19:30
OUT10:00
Number of rooms28 rooms
PetNot allowed
Your childPermitted

【Simple Stay】~A carefree journey without time constraints~No Meals Included Plan.

IN 15:00~21:00
OUT 11:00
¥19,800
No meals ; 2 peopleTax included¥16,040
(USD 100.53)

【Weekday Only】50% off per person → Save up to 8,250 yen! Plus, enjoy 5 major benefits with the Weekday Only Plan.

IN 15:00~19:30
OUT 11:00
¥24,750
Dinner and Breakfast included ; 2 peopleTax included¥20,056
(USD 125.71)

【Simple Stay】~A carefree journey without time constraints~No Meals Included Plan.

IN 15:00~21:00
OUT 11:00
¥20,900
No meals ; 2 peopleTax included¥16,930
(USD 106.11)

【Weekday Only】50% off per person → Save up to 8,250 yen! Plus, enjoy 5 major benefits with the Weekday Only Plan.

IN 15:00~19:30
OUT 11:00
¥26,400
Dinner and Breakfast included ; 2 peopleTax included¥21,390
(USD 134.07)

【Simple Stay】~A carefree journey without time constraints~No Meals Included Plan.

IN 15:00~21:00
OUT 11:00
¥22,000
No meals ; 2 peopleTax included¥17,820
(USD 111.69)

【Weekday Only】50% off per person → Save up to 8,250 yen! Plus, enjoy 5 major benefits with the Weekday Only Plan.

IN 15:00~19:30
OUT 11:00
¥28,050
Dinner and Breakfast included ; 2 peopleTax included¥22,726
(USD 142.44)

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Introduction of the Accommodation

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Experience the Serenity That Delights All Five Senses

The flickering flame of a candle, the murmuring of a stream, the rustling leaves swaying in the breeze—these natural, irregular rhythms known as "yuragi" are said to bring profound tranquility to modern individuals. We hope that your journey away from daily life will be enveloped in this soothing "yuragi," allowing both body and mind to relax completely. Born from this desire, our hospitality concept at Kōyūrō Izu is "Yuragi Enjoyed Through the Five Senses." At the entrance, you will be greeted by our "Yuragi Monument," designed based on this concept. Sight, sound, touch, taste, and smell—immerse yourself in gentle "yuragi" that engages each sense and enjoy a truly relaxing stay.

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The Scent of Serenity

Savor the essence of Japanese fragrance. Relish the warmth of traditional Japanese baths. Since its opening in 2008, "Kōyūan Waroma" has embraced "Japanese fragrance" as an essential part of its hospitality. At Kōyūan Waroma, you will find incense crafted from traditional aromatic woods, and in guest rooms, incense boxes inspired by Genji Kōzu motifs. The entrance and lounge are filled with the original aroma of Kōyūrō Igawa—a masterpiece created through countless adjustments by an aroma space designer. This exclusive scent, designed specifically for this space, gently diffuses from a carefully selected diffuser to welcome our guests warmly.

Onsen

The Gentle Flow of Hot Springs

Simply immersing yourself in the warm water can gently relax both your body and mind. Onsen enthusiasts often share such sentiments. Onsen not only offer physical benefits through buoyancy, water pressure, and heat, as well as chemical effects from their mineral composition, but they may also provide psychological benefits like stress relief and relaxation. Float freely in the spacious public bath. Gaze at the sky while soaking in an open-air bath. Chat with a loved one in a private onsen room. Enjoy a drink while relaxing with a footbath. Indulge in your own unique soothing experience with these charming bathing options.

Seasonal Fluctuations

Seasonal Delights

Blessed with the treasures of both sea and mountains, Izu is known as a haven for fresh ingredients. At Koutourou Itogawa, we present these bountiful gifts in our monthly seasonal menus, offering a true taste of the region.

Other Facilities

The Flicker of Light

From the moment you step inside, you'll be transported to an extraordinary space. The entrance is designed without windows, intentionally blocking natural light. The "Ripple Monument" on the walls features lighting that accentuates the shadows and textures of ripples and undulations, creating a graceful yet powerful presence.

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Sound Variations

Gentle background music can be heard throughout the facility. Enjoy "Solitudes," nature-inspired music that elevates recorded sounds of water streams, droplets, wind, rustling leaves, and birdsong into beautiful melodies. Additionally, experience high-quality sound from the sister label "Avalon" series. Music is carefully selected to match the image of each facility, offering a soothing "sound fluctuation" experience.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Hot Springs & Baths
    Hot Springs & Baths
  • Facilities & Services
    Facilities & Services
  • Meal
    Meal

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
BreakfastThere is no information about breakfast.
Your child
You can stay.
Children of elementary school age and under are not permitted to use RELAXING SALON OU.
Room service
Not available
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Face towel
  • ○ Bath towel
  • × Body towel · sponge
  • ○ Toothbrush set
  • ○ Comb · Brush
  • ○ Shower cap
  • ○ Hair dryer
  • ○ Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • ○ Pajamas
  • × Bathrobe
  • ○ Slippers
  • ○ facial cleanser
  • ○ Toner
  • ○ Lotion
  • ○ Makeup remover
  • ○ Cotton swab
  • ○ Cotton
  • × Clothing deodorizing spray
  • ○ Refrigerator
  • × Minibar
  • ○ Electric kettle
  • ○ Tea set (free)
  • ○ Television
  • ○ Safe
  • × Scale
  • × Trouser press
  • × Free morning edition
  • × Pay-per-view broadcast
  • ○ Satellite broadcasting
Facilities and Features
  • ○ Hot spring
  • × Rooms with open-air baths available
  • ○ Open-air bath
  • ○ Free-flowing hot spring
  • ○ Large public bath
  • ○ Private bath
  • × Sauna
  • × Ganbanyoku (rock bathing)
  • × Within a 5-minute walk from the station
  • ○ Within a 5-minute walk to the convenience store.
  • × Indoor pool
  • × Outdoor pool
  • × Pet-friendly
  • ○ Spa facility
  • × Fitness
  • × Free shuttle service
  • × Shuttle Service (Paid)
  • × Room service
  • × Room Service Available 24 Hours
  • × Barrier-free
  • ○ Childcare services
Esthetic Massage
Available
KARADA Salon “TONE” Trial Quick Facial Slimming or Quick Pelvic Alignment 20 min from ¥3,300~
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
15:00~10:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Add water)
Remarks
Open-air bath
The number of Open-air bath
2
Business Hours
15:00~10:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Add water)
Remarks
Private bath
The number of Private bath
5
Business Hours
15:00~09:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring (Add water)
Remarks
・Koyu-an waroma [GEN] [HAKU]: A bathing space with a living area where you can enjoy Japanese fragrances ・[Pes no Yu]: A bathing space inspired by a modern public bathhouse, created in collaboration with PESUART, an artist based in New York. ・GOKAN BATH: A minimalist, artistic retreat designed to let you fully experience “soothing fluctuations enjoyed through the five senses.” Fee: 50 minutes / JPY 1,650 per person (tax included) *Advance Reservation required *This Facility is for guests aged 13 and over.
Spring quality and benefits

Alkaline Simple Onsen

Neuralgia, skin conditions, gastrointestinal disorders, skin-beautifying effects, women’s health concerns, hemorrhoids, post-illness recovery, stress relief, joint pain, muscle pain, lower back pain, injuries, burns, stiff shoulders, sensitivity to cold (poor circulation), rheumatism, and more.

※Regarding the notation of "Gensen Kakenagashi"
In some facilities, heating or adding water for temperature adjustment may be performed. Additionally, please note that in some parts of the facility, the hot spring water may not be free-flowing from the source. For more details, please contact each facility.

SaunaNone
Hot stone spaNone

Reviews

Overall Score
4.35
Good (92)
  • Rooms & Amenities
    4.17
  • Facility
    4.34
  • Hospitality & Service
    4.38
  • Meals
    4.28
  • Onsen & Bath
    4.51
  • Satisfaction
    4.39

*Reviews that have been translated from Japanese.*

*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*

Access Information

Address
Shizuoka Prefecture43-2 Kona, Izunokuni City, Shizuoka, Japan
TEL:+81-55-948-1601

≪By Train≫
JR Mishima Station → Izu-Hakone Railway Izunagaoka Station → about 5 minutes by bus.

≪By Car≫
Tomei Expressway Numazu IC → Izu-Jukan Expressway Izunagaoka IC: about 20 minutes.

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
50 cars available Indoor & Outdoor
Valet service
Unavailable

Pickup and drop-off information
Unavailable

Frequently Asked Questions

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