100% natural Onsen directly from our private source. Enjoy the fresh, newly born hot spring to your heart's content.

A Ryokan with its own private Onsen source. Enjoy 100% free-flowing natural hot spring water in the large public bath and open-air bath, with no added water or heating. Kaiseki cuisine featuring local ingredients, including splendid alfonsino, is also popular. A recommended place where you can casually enjoy both the Onsen and great dining.

  • We stayed at “Iroukan” during the Obon holidays. Since we were traveling with our dog, we chose Iroukan based on Reviews while searching for a pet-friendly Accommodation. The hospitality exceeded our expectations—the warmth and smiles from every staff member were truly wonderful. Of course, the food was just as highly rated: incredibly delicious and very generous in portion size.From the moment we arrived at the Accommodation’s parking lot, the staff’s kindness and attentiveness stood out—helping with our luggage, welcoming us at the entrance, and even greeting us with a charmingly retro Showa-era style that surprised us in the best way. Everyone clearly loves dogs, and our dog also seemed completely at ease throughout our three-day stay.The Onsen was also fantastic, with free-flowing natural hot spring water and both indoor and open-air baths to enjoy. It’s hard to sum up in just a few words how memorable the service was—and even the head chef’s unique personality gave us a good laugh.The building has an old-fashioned feel that reflects its history, but it’s exactly what you’d hope for in a classic Ryokan—an excellent place where you can truly relax. There is so much more I’d love to share, but if you’re going to Izu, please stay at Iroukan at least once. It’s absolutely worth experiencing.If we have another chance, this is definitely an Accommodation we would love to stay at again.

    はるるのパパ 8/18/2026
  • The staff were incredibly friendly and kind!The Onsen was amazing, but what impressed me most was the hospitality.And the kimbap was unbelievably delicious. On the second day they kindly served inari sushi, but I liked it so much I wanted to eat kimbap two days in a row!!The building is old, but it felt like visiting the countryside, and everything was thoroughly cleaned and spotless.

    SNOOPY999 7/22/2026

Facilities and Services

See All
  • Hot spring
  • Pet-friendly
Open-air bath / Free-flowing hot spring / Large public bath / Within a 5-minute walk to the convenience store. / Free shuttle service
IN15:00~18:00
OUT10:00
Number of rooms17 rooms
PetPermitted
Your childPermitted

[No Meals Included] 100% Free-Flowing Private Source Onsen! Natural Hot Springs Exclusive to Iroukan—A New Style of Hot Spring Therapy (Check-in until 8:00 PM)

IN 15:00~20:00
OUT 10:00
¥15,400~
No meals ; 2 peopleTax included¥14,322〜
(USD 90.47)
Japanese-style room, 10 tatami mats
  • Japanese-style Room
  • Capacity 1~4 people

[1 Night with Breakfast] Take Your Time Exploring Minami-Izu! Unwind in a Natural Onsen After a Day Out (Check-in until 8:00 PM)

IN 15:00~20:00
OUT 10:00
¥22,000~
Breakfast included ; 2 peopleTax included¥20,460〜
(USD 129.24)

[New Hot-Spring Therapy Style] A journey to savor a “living” Onsen that changes day by day—plus enjoy a whole simmered golden eye snapper! Includes special perks.

IN 15:00~18:00
OUT 10:00
¥35,200~
Dinner and Breakfast included ; 2 peopleTax included¥29,920〜
(USD 189.00)

[1-Night Stay with Dinner] Early morning departures welcome! Enjoy a “living” Onsen known for its skin benefits and fresh seafood. # Prefer a relaxed pace? No breakfast included—sleep in without worry!

IN 15:00~18:00
OUT 10:00
¥39,600~
Dinner included ; 2 peopleTax included¥33,660〜
(USD 212.63)

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Hotel With Kid-Friendly Facilities And Experiences

Introduction of the Accommodation

Lobby

Lobby: Be welcomed by a calligraphy piece personally inscribed by the Chief Priest of Kiyomizu-dera Temple.

We exhibit calligraphy graciously inscribed by the Chief Priest of Kiyomizu-dera—widely known for the annual “Kanji of the Year”—as well as chief priests from other renowned temples.

Ryujin Hot Spring

A “living” Onsen that changes day by day: Ryujin-no-Yu

A bathhouse where the rising steam seems to summon a dragon deity in flight. Let your body and mind unwind, wrapped in deep tranquility. Savor the quiet, lingering healing.

Guest Room

Guest Room

A relaxing space to rest both body and mind, gently infused with a touch of Japanese ambiance.

Cuisine

Cuisine

Irozaki Special Selection Plan This is a special kaiseki course featuring luxurious local flavors unique to Minamiizu. Recommended for celebration trips and anniversary stays.

Entrance

Entrance: A seasonal welcome throughout the year

Seasonal Flowers Dogwoods and bush clover quietly welcome all guests to Iroukan. Parking is available in front of the entrance.

Facilities and Equipment of Accommodation

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

Basic Information

TaxesAn additional Hot Spring Tax of 150 yen per adult will be charged.
Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay / Debit card
Pets
Permitted
We offer exclusive guest rooms where you can stay with your beloved dog. Please make sure to complete the Reservation correctly. Dogs are not allowed in areas other than the designated guest rooms, so please be aware of this restriction. Due to facility limitations, only small dogs (under 10kg) are accepted. Please prepare meals for your dog on your own. [Important Notes] - Dogs must have received rabies and combination vaccines. - Only clean dogs that have been treated for fleas and ticks are allowed. - Please carry or use a pet carrier when moving within the facility. - Dogs should be well-trained in basic manners such as avoiding excessive barking and being toilet-trained.
BreakfastHealthy Japanese set meals with fish and vegetables. From 7:30 AM~
Your child
You can stay.
Please select according to your preference for "Meals" and "Bedding." ★ "Same meals as adults" and "With bedding" → Select "Upper Elementary School Age" (100% of adult rate) ★ "Children's meals" and "With bedding" → Select "Lower Elementary School Age/Preschool Age" (70% of adult rate) ★ "No meals, no bedding" → Select "Child Sharing Existing Bedding (no meals or bedding)" (3,500 yen)
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
None
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
15:00~09:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
100% natural hot spring
Remarks
Irokan is located in the Shimogamo area, a region rich with natural hot spring sources along the Aono River. Taking advantage of this prime location, fresh natural Onsen water flows directly into our large baths without any added water or heating. Between 7:00 PM and 8:00 PM, while guests enjoy their dinner, we clean the baths and switch the men's and women's bath areas. After that, you are welcome to enjoy bathing as many times as you like until 9:00 AM the next morning.
Open-air bath
The number of Open-air bath
2
Business Hours
15:00~09:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
100% natural hot spring
Remarks
[The Only Golden Onsen in Shimogamo] Our "Gensen Kakenagashi" (natural hot spring flow) adjusts water temperature through its flow rate. At Ishirokan, we do not add water or heat, allowing you to experience high-quality Onsen. We use the 54.5°C natural hot spring source directly without any alteration. Please note that the bath temperature may vary depending on seasonal changes or weather conditions.
Room with Onsen Indoor Bath
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
100% natural hot spring
Remarks
A small private bath in the room is filled with Onsen water. Of course, it is also sourced directly from the hot spring. Enjoy Shimogamo Onsen more casually from the comfort of your room.
Spring quality and benefits

Sodium-Calcium Chloride Spring

The Onsen, known as "Shioyu," is a mildly alkaline hot spring with a pH of 7.4. It warms the body during winter and feels refreshing even in summer, making it a delightful experience year-round. Guests have also shared feedback about its potential benefits for healing wounds and enhancing skin beauty.

※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
4.59
Wonderful (53)
  • Rooms & Amenities
    4.26
  • Facility
    4.11
  • Hospitality & Service
    4.91
  • Meals
    4.84
  • Onsen & Bath
    4.68
  • Satisfaction
    4.72

*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 Prefecture204-2 Shimogamo, Minamiizu-cho, Kamo-gun
TEL:+81-558-62-0013

From Shin-Tomei Nagasawa Numazu IC or Tomei Numazu IC → Izu Jukan Expressway (partially toll road) → Amagi Pass → Kawazu-Shimoda Road → Shimoda → Minami-Izu
If you expect to arrive after 6:00 PM, please call us.
【Approximate Travel Time】90 minutes from Numazu IC, 2 hours from Atami City, 60 minutes from Joren Falls

Parking Information
Fee
Free for guests
Parking time
Available for use before and after check-out.
Parking space
No restrictions
Number of parking spaces
20 cars available outdoor
Valet service
Unavailable
Parking is available before check-in and after check-out.

Pickup and drop-off information
Available (Free)[Reservation Required]
Pick-up at Izukyu-Shimoda Station is at 3:00 PM.
We will be waiting near the "Foot Bath" area in front of the station rotary.
Drop-off on the following day departs from Ishirokan at 10:00 AM.

Frequently Asked Questions

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