A stunning property offering panoramic views of Mikawa Bay, a star-filled sky, and the nightscape of Gamagori city.

A luxurious hideaway perched atop the mountains of Gamagori, perfect for creating wonderful memories for couples and families alike. Enjoy the liberating open-air bath at an altitude of 380 meters, and the panoramic views from every room, offering a stunning starry sky and the nightscape of Gamagori city. For dinner, indulge in luxurious ingredients that Aichi is proud of, such as Ise lobster, abalone, and Kuroge Wagyu beef, accompanied by the night view visible from the dining area. The property also features a spacious large public bath, allowing you to enjoy a special moment away from the hustle and bustle of daily life. In addition to the night view, the beautiful scenery of Mikawa Bay, which changes from morning to evening, will add color to your Gamagori trip. How about spending a special moment on your special day at the commemorative Stays Amanomaru?

  • The price, service, and facilities were all very satisfying. We visited with our 3-year-old son and used the private bath for 45 minutes, which offered an amazing view. It made us strongly want to visit again. The room we stayed in did not have a bath or shower, and some amenities were paid as mentioned beforehand, so we had no complaints during our stay. The service was excellent, and we are very happy to have found such a great accommodation.

    おおーいし 6/23/2025
  • I stayed during the Obon period to relax and unwind. I booked a room with an open-air bath, where I enjoyed soaking multiple times while overlooking Mikawa Bay. Although the weather was cloudy and I couldn't see the stars, the night view of Gamagori City was beautiful. I could even spot the Shinkansen passing by and boats at the racecourse. The great feature of this open-air bath is that there’s a space opposite the bathtub where you can lie down, allowing for a therapeutic experience of alternating between soaking in hot water and resting. I also visited the rooftop open-air bath, but it was only slightly larger than the one in my room, so I found my room's bath more than sufficient. The meals were delicious, and staff were well-trained, making my stay very pleasant. Highly recommended for those looking to refresh themselves!

    GarageBand 8/14/2025

Facilities and Services

See All
  • Hot spring
  • Room with Open-Air Bath
  • Spa facility
Open-air bath / Large public bath / Private bath / Free shuttle service
IN15:00~18:00
OUT10:00
Number of rooms37 rooms
PetNot allowed
Your childPermitted

【No Meals Included】Simple Stay Plan|Recommended for sightseeing! Enjoy the natural Onsen with a stunning view of Mikawa Bay【No meals】

IN 18:00~21:00
OUT 10:00
¥20,100
No meals ; 2 peopleTax included¥19,698
(USD 124.47)

【1 Night with Breakfast】Standard Breakfast Plan|Enjoy Amanomaru's proud Japanese breakfast and the large panoramic open-air bath and public bath【Breakfast Only】

IN 18:00~21:00
OUT 10:00
¥24,500
Breakfast included ; 2 peopleTax included¥24,010
(USD 151.71)
Deluxe Twin Room
Jul 15, 2023Renovated
  • Twin
  • 34㎡
  • Capacity 1~2 people

【No Meals Included】Simple Stay Plan|Recommended for sightseeing! Enjoy the natural Onsen with a stunning view of Mikawa Bay【No meals】

IN 18:00~21:00
OUT 10:00
¥28,900
No meals ; 2 peopleTax included¥28,322
(USD 178.96)

【1 Night with Breakfast】Standard Breakfast Plan|Enjoy Amanomaru's proud Japanese breakfast and the large panoramic open-air bath and public bath【Breakfast Only】

IN 18:00~21:00
OUT 10:00
¥31,100
Breakfast included ; 2 peopleTax included¥30,478
(USD 192.59)

【No Meals Included】Simple Stay Plan|Recommended for sightseeing! Enjoy the natural Onsen with a stunning view of Mikawa Bay【No meals】

IN 18:00~21:00
OUT 10:00
¥31,100
No meals ; 2 peopleTax included¥30,478
(USD 192.59)

【1 Night with Breakfast】Standard Breakfast Plan|Enjoy Amanomaru's proud Japanese breakfast and the large panoramic open-air bath and public bath【Breakfast Only】

IN 18:00~21:00
OUT 10:00
¥33,300
Breakfast included ; 2 peopleTax included¥32,634
(USD 206.21)

Best-Selling Stays

Popular Stays With Overseas Travel Vibe

Baby-Friendly Accommodation With Easy Diaper Changing

Accommodation With Activities In And Around The Property

Recommended Accommodation For Company Trips

Recommended Accommodation For Travel With Junior High School Students

Accommodation Convenient For Corporate Use

Accommodation With Extensive Drink Service

Introduction of the Accommodation

Image

From the deck, enjoy the breathtaking view of Mikawa Bay. Delight in the changing scenery from morning to night.

Room

Room

The perfect moment to relax away from everyday life with a night view and Onsen.

Onsen & Bath
Onsen & Bath
Onsen & Bath
Onsen & Bath
Onsen & Bath

Our open-air bath uses Gamagori Natural Onsen "Bihaku-sen". Please relax and enjoy your time.

Meals
Meals

We invite you to savor the beautifully and vibrantly presented delights of your journey, crafted with care and served in a relaxed and harmonious setting.

Other Facilities
Other Facilities

The stars in the sky shine brightly, filling the night sky. The stars on the ground sparkle like jewels scattered below. The mansion stands as if it is flying between them. It is like a spaceship traveling through the galaxy.

Facilities and Equipment of Accommodation

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

Basic Information

TaxesA Hot Spring Tax of 150 yen per adult will be charged separately.
Card information
VISA / MASTER / JCB / AMEX
Pets
Not allowed
BreakfastThere is no information about breakfast.
Your child
You can stay.
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
The treatment will be conducted in the spa room ■ Business hours (irregular holidays) 16:00 ~ last reception at 21:00 Same-day cancellations will incur a Cancellation Fee 《100% of the fee》. ※ Advance Reservation is required. ※ Typically operated by one staff member.
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
15:00~23:00
Hot spring
None
Free-flowing
None
Milky hot spring water
None
Additional Information
Remarks
Open-air bath
The number of Open-air bath
2
Business Hours
15:00~23:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
Private bath
The number of Private bath
2
Business Hours
15:00~22:45
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
One-time use: 45 minutes for ¥3,300 (tax included) / ¥3,000 (tax excluded).
Room with Open-Air Bath
Hot spring
None
Free-flowing
None
Milky hot spring water
None
Additional Information
Remarks
Spring quality and benefits

Simple alkaline Onsen (Low-tonicity alkaline Onsen)

Neuralgia, muscle pain, joint pain, joint stiffness, motor paralysis, frozen shoulder, bruises, chronic digestive disorders, hemorrhoids, cold sensitivity, post-illness recovery, fatigue recovery, health promotion.

SaunaNone
Hot stone spaNone

Reviews

Overall Score
3.52
(25)
  • Rooms & Amenities
    3.44
  • Facility
    3.32
  • Hospitality & Service
    3.60
  • Meals
    3.75
  • Onsen & Bath
    3.48
  • Satisfaction
    3.52

*Reviews that have been translated from Japanese.*

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

Access Information

Address
Aichi Prefecture10, Ogi, Tōmine, Kota Town, Nukata District
TEL:+81-564-62-1751

Access by Train
Get off at JR Gamagori Station, and take a taxi from either the North or South Exit (approximately 20–25 minutes).
Additionally, we offer a free Shuttle Service by bus with prior Reservation.

■ Osaka (Shinkansen 60 minutes) → Nagoya (JR Tokaido Main Line 40 minutes) → Gamagori
■ Tokyo (Shinkansen 95 minutes) → Toyohashi (JR Tokaido Main Line 11 minutes) → Gamagori
* Shinkansen times are based on using the Hikari service.

Access by Car
■ From Nagoya: Enter the Gamagori-Nishio Line from the Okazaki Interchange, turn left at the Kamiji Intersection, enter Route 248, turn left at the Ogi Intersection, and proceed to the Mikawa Bay Skyline.
■ From Tokyo: From the Otowa-Gamagori Interchange on the Tomei Expressway, proceed to the Orange Road, turn right at the Fusai Intersection, and turn right again at the Kawahigashi Intersection past the Gamagori Police Station to reach the Mikawa Bay Skyline.

*Important Notes for Car Navigation System Settings
When using a car navigation system, please search using our phone number: 0564-62-1751.
Depending on the navigation system, it may display "Mikawa Heights (former name)" or "Mikawa Heights Ten no Maru." Additionally, please ensure the setting is configured to "use toll roads (not general roads only)."

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
60 cars available outdoor
Valet service
Unavailable

Pickup and drop-off information
Available (Free)From bus stop No. 4 at the south exit of JR Gamagori Station, we provide a free Shuttle Service by Reservation. Please make a reservation by phone. (※ Operates only with a Reservation.) Timetable|14:30, 16:30 ※ Not a regular service. The next day's shuttle departs from Amanomaru at 10:00.

Frequently Asked Questions

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