Reliable Route Inn quality across the whole country. About a 5-minute walk from Hanyu Station, with a large hot-spring bath featuring free-flowing natural spring water.

Conveniently located near Ashikaga City and Kumagaya City. A Business Hotel with a rare natural Onsen with free-flowing hot spring water in the Saitama City area. Equipped with a sauna and more. We welcome you to a comfortable space to relieve your travel fatigue.

  • As the facility includes an Onsen, I was able to spend a very enjoyable and comfortable time. I heard the tuna is delicious, so next time I would like to take my time and enjoy the meals as well.

    母娘旅2024 2/2/2025

Facilities and Services

See All
  • Hot spring
  • Spa facility
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.
IN15:00~28:00
OUT10:00
Number of rooms259 rooms
PetNot allowed
Your childNot allowed
■Information on Child Sharing Existing Bedding■ Child Sharing Existing Bedding for elementary school children: JPY 2,000 (tax included) Child Sharing Existing Bedding for infants and toddlers: Free of charge If a child will be sharing existing bedding in excess of the Room capacity, please do not include the child in the number of guests when searching for availability, and instead note this in the comments section. ■Request Regarding Rooms with a Maximum Occupancy of 2 Guests■ If you use a Room with a maximum occupancy of 2 guests as “1 adult + 1 child sharing existing bedding,” you will be charged the rate for 2 adults. Thank you for your understanding. For details, please contact the Hotel.

Notice from the Accommodation

Notice of Temporary Closure of the Open-Air Bath
2026.09.30

Thank you for your continued patronage of Route-Inn Grantia Hanyu SPA RESORT.
Due to the delivery and installation work for air-conditioning equipment, the open-air bath will be unavailable during the following times.
We sincerely apologize for any inconvenience this may cause and appreciate your understanding and cooperation.

■ Open-Air Bath Closure Schedule
 ・Monday, October 5, 2026 13:00–15:00
 ・Monday, October 19, 2026 13:00–15:00
  *On both dates, the open-air bath will be available until 13:00 before the work begins, and normal operations will resume from 15:00 after completion.*

■ Large Public Bath Operations During the Work Period
 All areas other than the open-air bath will remain available as usual.

Early Booking 10-Day Plan [No Meals Included] Free Hana-no-Yu Onsen Access

IN 15:00~28:00
OUT 10:00
¥8,598~
No meals ; 1 personTax included¥7,739〜
(USD 49.03)

Simple Stay (No Meals Included)

IN 15:00~28:00
OUT 10:00
¥9,073~
No meals ; 1 personTax included¥8,166〜
(USD 51.73)

Early Booking 10-Day Plan [No Meals Included] Free Hana-no-Yu Onsen Access

IN 15:00~28:00
OUT 10:00
¥8,598~
No meals ; 1 personTax included¥7,739〜
(USD 49.03)

Simple Stay (No Meals Included)

IN 15:00~28:00
OUT 10:00
¥9,073~
No meals ; 1 personTax included¥8,166〜
(USD 51.73)
Single Room B with bath and toilet.
  • Single
  • 13㎡
  • Capacity 1~2 people

Early Booking 10-Day Plan [No Meals Included] Free Hana-no-Yu Onsen Access

IN 15:00~28:00
OUT 10:00
¥9,073~
No meals ; 1 personTax included¥8,166〜
(USD 51.73)

Simple Stay (No Meals Included)

IN 15:00~28:00
OUT 10:00
¥9,595~
No meals ; 1 personTax included¥8,636〜
(USD 54.71)

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Introduction of the Accommodation

Buffet Breakfast
Buffet Breakfast

【Business Hours】 6:30 - 9:00 【Rates】 Adults: 1,500 yen (tax included) Elementary School Students: 1,000 yen (tax included) Preschool Children: Free

Notice from the Accommodation

  • [Information on the Building’s Air Conditioning]

    Regarding the Room air conditioning,
    cooling and heating are switched according to the outdoor unit settings,
    so it cannot be switched individually for each Room.
    Due to the Facility specifications, we may not be able to accommodate your request,
    and we kindly ask for your understanding.

  • Route Inn Grantia Hanyu SPA RESORT

    [Notice of Facility Operating Hours]

    Thank you very much for your continued patronage of Route-Inn Grantia Hanyu SPA RESORT.

    Please find the operating hours of our in-house facilities below.


    ・Hana-no-Yu (Hot Springs)
     For staying guests: Until 24:00 (last admission 23:30) / Morning bath from 6:00
     For day-use guests: Until 24:00 (last admission 23:00)


    ・Restaurant Hanachaya: 11:00–21:00 (last order 20:45)


    ・Seafood Dining Maguroya
     Weekdays: 17:00–23:00 (last order 22:30)
     Weekends & holidays: 12:00–23,000 (last order 22,30)


    ・Manga Corner / Relaxation Room: 10,000–23,30

    ・Hot Stone Sauna :10.000-23.30(last admission22.30)

    ・Kids’ Corner :10.000-21.000

    ・Mahjong :11.000-23.000

    ·Karaoke :11.000-23,0oo

    ·Hair Salon :11.o0o-21.o0o(last admission20;45)

    ·Body Scrub :11.o0o-2330(last admission2300)

    ·Body Care ;10,o0o -2330(last admission2300)

    Please note that some facilities may operate with certain usage restrictions.
    Thank you for your understanding and cooperation.

  • [Notice of Installation of a New Gate Barrier at the Self-Parking Multi-Storey Car Park]

    A new gate barrier has been installed at the self-parking garage.
    If you use the parking facility, please present your parking ticket at the Hotel front desk or the spa reception so we can validate it for free parking.

    Vehicles over 2.1 m in height cannot be accommodated due to facility specifications. Please contact us in advance.

    *Parking is strictly prohibited for anyone not using Route-Inn Grantia Hanyu or Super Kenko Land Hana no Yu.*

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay / Debit card
Pets
Not allowed
BreakfastBuffet breakfast (Adults: JPY 1,500 / Children: JPY 1,000) Hours: 6:30–9:00
Your child
You cannot stay.
■Information on Child Sharing Existing Bedding■ Child Sharing Existing Bedding for elementary school children: JPY 2,000 (tax included) Child Sharing Existing Bedding for infants and toddlers: Free of charge If a child will be sharing existing bedding in excess of the Room capacity, please do not include the child in the number of guests when searching for availability, and instead note this in the comments section. ■Request Regarding Rooms with a Maximum Occupancy of 2 Guests■ If you use a Room with a maximum occupancy of 2 guests as “1 adult + 1 child sharing existing bedding,” you will be charged the rate for 2 adults. Thank you for your understanding. For details, please contact the Hotel.
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
Fitness gym
None
Public Bath
The number of Public Bath
10
Business Hours
---
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring (Heating, Adding Water)
Remarks
[Hours of Use] 15:00–24:00 / 6:00–10:00 (Available to overnight guests only) --------------- *Notice of Fire Safety Equipment Inspection* Date & Time: Friday, August 21, 2026, 9:00–17:00 (scheduled) - Due to the inspection, the Hana-no-Yu women’s bath will be closed from 8:30 to 10:00. Please note that staff may enter and exit the men’s bath during operating hours as well. - The inspection will include checks of fire safety equipment in common areas, testing of emergency announcements, and sounding of the emergency alarm. - To confirm operation of the fire safety equipment, staff will enter guest Rooms.
Open-air bath
The number of Open-air bath
16
Business Hours
---
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
100% natural hot spring (Heating, Adding Water)
Remarks
[Hours of Use] 15:00–24:00 / 6:00–10:00 (available to overnight guests only)
Private bath
The number of Private bath
2
Business Hours
11:00~22:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
The private bath requires a Reservation (available from one week in advance). The fee is 1,100 yen per hour on weekdays and 1,300 yen per hour on weekends and public holidays.
Spring quality and benefits

Sodium Bicarbonate Chloride Spring

Neuralgia relief, fatigue recovery, etc.

※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.

SaunaAvailable
Hot stone spaAvailableFee: JPY 400 (tax included) Hours: 10:00–23:30 (last admission 23:00)
Others■Available Payment Methods■ ・Various e-money options (please contact the Hotel for details) ・Various QR code payment options (please contact the Hotel for details)

Reviews

Overall Score
4.07
(20)
  • Rooms & Amenities
    3.75
  • Facility
    3.90
  • Hospitality & Service
    4.00
  • Meals
    4.13
  • Onsen & Bath
    4.60
  • Satisfaction
    4.05

*Reviews that have been translated from Japanese.*

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

Access Information

Address
Saitama Prefecture3-19-3 Nishi, Hanyu City
TEL:+81-48-560-3555

[By Car]
15 minutes by car from Hanyu Interchange on the Tohoku Expressway
[By Train]
3 minutes on foot from the West Exit of Hanyu Station (Tobu Isesaki Line / Chichibu Railway)

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
250 cars available outdoor
Valet service
Unavailable
At Route Inn Hotel, to ensure fair use of our limited parking spaces, we kindly ask that you refrain from parking vehicles that occupy multiple spaces. Thank you for your understanding.

Except for sightseeing buses and designated vehicles (such as special medical vehicles and emergency vehicles), we appreciate your understanding and cooperation if your vehicle exceeds one parking space.

-------------------

Notice of New Gate Bar Installation for the Self-Parking Multi-Story Car Park

A new gate bar has been installed at the self-parking multi-story car park.
If you wish to use it, please present your parking ticket at the Hotel front desk or the spa front desk so we can validate it as a free pass.

Due to specifications, vehicles with a height of 2.1 m or more cannot be accommodated. Please contact us in advance.

* Parking is strictly prohibited for anyone other than guests using Route-Inn Grantia Hanyu and Super Kenko Land Hana no Yu.
* If someone not using these Facility parks here, a fee of JPY 1,000 will be charged at the Hotel or Hana no Yu front desk.

Pickup and drop-off information
Unavailable

Frequently Asked Questions

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