Terrace
Public Bath
Meal example
Guest room
Exterior
146 photos

Izu Imaihama Onsen Imaisou

Shizuoka Prefecture／Kawazu Onsen Area
¥68,200～
Dinner and Breakfast included ; 2 peopleTax included¥49,275〜
(USD 314.07)

A blissful slow resort where you can unwind without watching the clock

Experience the serenity of the sea and relax as you wish. With this in mind, Imaisou will reopen in August 2024 under the concept of "Slow Resort." Reborn as a modern Japanese-style resort Ryokan with an all-inclusive approach, the Property has undergone a complete renovation. From guest rooms, lounges, restaurants, large communal baths, private baths, to the garden, the entire Property has been redesigned with a simple yet tranquil Japanese aesthetic. The Accommodation Fee includes meals and beverages, allowing you to enjoy a worry-free and leisurely stay. During your stay, feel free to indulge in midnight beer or post-bath ice pops at your convenience. Spend a special holiday with your loved ones, cherishing precious moments together.

4.74 - The best(424)
  • I’m a returning guest.

    I stayed here for the first time last year and it was wonderful, so this year I stayed for two nights. This is a very comfortable Hotel, with spotless Rooms, high-quality meals, and excellent Facilities. As it’s truly all-inclusive, I was able to spend three days without opening my wallet at all. Whenever the food or snacks started to run low, they were replenished immediately—the staff’s attentiveness is outstanding. I also saw the manager throughout all three days; it made me wonder when they ever rest, as they were working alongside the staff like everyone else. Every time I visit, I’m impressed by the hospitality of the staff at Imaisou. Thank you very much. I would love to visit again next year!

    Monkey 8/28/2026
  • Thank you for hosting us again.

    I visited in January and loved it so much that I came back again.The entire Accommodation, including the Room and baths, was impeccably clean, and I had a very comfortable stay.All the staff were cheerful and responsive, which made everything feel great!The warming chloride-spring bath (Onsen) was flawless, the meals featuring plenty of local ingredients were flawless as well, and I truly enjoyed the all-inclusive experience.I will definitely be back again.This is no longer just a repeat visit—it’s my go-to Accommodation!

    Tom.Tommy 8/31/2026

Facilities and Services

See All
  • Hot spring
  • Spa facility
Open-air bath / Large public bath / Private bath / Sauna / Within a 5-minute walk from the station / Free shuttle service
IN15:00～18:00
OUT11:00
Number of rooms53 rooms
PetNot allowed
Your childPermitted

Photo

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You can relax in a simple Japanese-style room.
Japanese-Style Room with Anteroom (Floors 4–7)
Aug 5, 2024Renovated
  • Japanese-style Room
  • 63.61㎡
  • Capacity 2~5 people

【Premium Value Plan】Property with stunning ocean views, enjoy an all-inclusive stay!

IN 15:00～18:00
OUT 11:00
¥68,200～
Dinner and Breakfast included ; 2 peopleTax included¥49,275〜
(USD 314.07)

From October 1, enjoy a great value by dining at Restaurant “Sakura,” located away from the buffet area (3 steps).

IN 15:00～18:00
OUT 11:00
¥66,000～
Dinner and Breakfast included ; 2 peopleTax included¥50,490〜
(USD 321.82)
Low-floor corner Room (Shimoda side) / Ocean view
Lower-floor corner Room (Shimoda side, 4th–6th floors)
Aug 5, 2024Renovated
  • Japanese-Western room
  • 76.28㎡
  • Capacity 2~5 people

From Oct 1: [Early Bird 90] [Limited View] Special price because only a partial ocean view is available! (Lower floors, Shimoda side, corner Room)

IN 15:00～18:00
OUT 11:00
¥66,000～
Dinner and Breakfast included ; 2 peopleTax included¥50,490〜
(USD 321.82)

From Oct 1: [Early Bird 60] [Limited View] Special rate because only a partial ocean view is available! (Lower floors, Shimoda side, corner Room)

IN 15:00～18:00
OUT 11:00
¥67,100～
Dinner and Breakfast included ; 2 peopleTax included¥51,332〜
(USD 327.19)
The main room is a Japanese-style room, comfortable for those who prefer beds.
Japanese-style Room + Bedroom (Corner Room, 4th–7th Floors)
Aug 5, 2024Renovated
  • Japanese-Western room
  • 76.28㎡
  • Capacity 2~5 people

From Oct 1: [Early Bird 90] Book 90 days in advance and save! Enjoy an all-inclusive stay and spectacular views at the slow resort Imaisou.

IN 15:00～18:00
OUT 11:00
¥72,600～
Dinner and Breakfast included ; 2 peopleTax included¥55,539〜
(USD 354.00)

From Oct 1: [Early Bird 60] Book 60 days in advance and save! Enjoy an all-inclusive stay and breathtaking views at Imaisou for a relaxing resort getaway.

IN 15:00～18:00
OUT 11:00
¥73,700～
Dinner and Breakfast included ; 2 peopleTax included¥56,381〜
(USD 359.37)

Best-Selling Stays

Rooms With Open-Air Baths Popular At Stays

Recommended Accommodation For Company Trips

Accommodation Suitable For 2 Family Trips

Accommodation For A Comfortable Stay With Grandma

Introduction of the Accommodation

Facilities and Equipment of Accommodation

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

Notice from the Accommodation

  • Now available: Kawazu “Mangetsu no Shio” (Full Moon Salt)

    Thank you very much for your continued patronage of Izu Imaihama Onsen Imaiso.

    We are pleased to announce that the Imaiso shop has started selling “Mangetsu no Shio” (Full Moon Salt), a natural salt crafted by Amagi Country Kobo in Kawazu Town.

    “Mangetsu no Shio” is a special salt unique to Kawazu, made by carefully simmering seawater drawn from the sea of Izu on the night of the full moon.

    We have previously received inquiries such as “I’m looking for Mangetsu no Shio” and “Can I purchase it?”, and we are delighted to now offer it in our shop.

    It features a mellow, well-rounded saltiness that gently enhances the natural flavors of ingredients.

    Perfect for home use, it also makes an excellent souvenir from Kawazu.

    When you stay with us, please stop by the Imaiso shop and pick some up.

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
BreakfastJapanese, Western, and Chinese buffet at Dining Saika or Sakura
Your child
You can stay.
For stays up to September 30, 2026: Children are categorized as follows. Please enter your details carefully to avoid mistakes. ・Elementary school students → Upper grades / Lower grades ・Ages 2 to pre-school → Infants (meals & bedding included) ・Ages 0–1 → Infants (no meals or bedding) For stays from October 2026 onward: Please enter your details carefully to avoid mistakes. ・Elementary school students → Upper grades / Lower grades ・Ages 4 to pre-school → Infants (meals & bedding included) ・Ages 2–3 → Infants (meals only) ・Ages 0–1 → Infants (no meals or bedding)
Room service
Not available
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Towel · Bath towel
  • ○ Body towel · sponge
  • ○ Toothbrush set
  • × Comb · Brush
  • × Shower cap
  • ○ Hair dryer
  • × Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • × Yukata
  • ○ Nightwear
  • × 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
  • × Video on Demand
  • × Radio
  • × CD player
  • × DVD player
  • × Blu-ray player
  • × Speakers for portable audio
  • × In-room PCs and tablets
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
In-room massage and spa treatments are available. A wide range of services, including facial treatments, is offered. Please check the in-room TV system for detailed pricing.
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
(Heating, Adding Water)
Remarks
Large Public Bath “Hekikai / Hekiku” Bathing Hours: 15:00–24:00 / 5:00–10:00 Men’s and women’s baths are switched on a rotating schedule.
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
(Heating, Adding Water)
Remarks
Large Public Bath [Hekikai / Hekiku] Bathing Hours: 15:00–24:00 / 5:00–10:00 Men’s and women’s baths are alternated by schedule.
Private bath
The number of Private bath
1
Business Hours
15:30~23:15
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
The private bath on the 2nd floor, “Moonlight,” is available by Reservation. The fee is JPY 1,200 per session (tax included). Each session is 45 minutes, starting at :30 and ending at :15 each hour. (The remaining 15 minutes are reserved for cleaning.) *Last entry slot: 22:30–*
Spring quality and benefits

Sodium Chloride Spring

Joint pain, sensitivity to cold, rheumatism, and nerve-related conditions.

SaunaAvailable
Hot stone spaNone

Reviews

Overall Score
4.74
The best (424)
  • Rooms & Amenities
    4.71
  • Facility
    4.76
  • Hospitality & Service
    4.84
  • Meals
    4.75
  • Onsen & Bath
    4.54
  • Satisfaction
    4.82

*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 Prefecture127 Mitaka, Kawazu Town, Kamo District
TEL：+81-120-462-800
Reservation Center

About a 3-minute walk from Izu Kyuko Line Imaihama-Kaigan Station / About a 5-minute Shuttle Service ride from Izu Kyuko Line Kawazu Station

Parking Information
Fee
Free for guests
Parking time
15:00–11:00 the next day
Parking space
No restrictions
Number of parking spaces
20 cars available outdoor
Valet service
Unavailable
(Usage hours) From check-in at 3:00 PM to check-out at 11:00 AM. Availability is limited.

Pickup and drop-off information
Available (Free)Free Shuttle Service from Kawazu Station. Travel time: approx. 7 minutes
14:10 / 14:40 / 15:25 / 15:45
No Reservation required.

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