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Go beyond your typical stay in Kosai

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Check prices for these dates

Tonight
12 Nov - 13 Nov
Tomorrow
13 Nov - 14 Nov
This weekend
13 Nov - 15 Nov
Next weekend
20 Nov - 22 Nov

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Our top choices for Kosai hotels

A buffet line with various food items and condiments.

1. Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
3.0 star property
Kosai
8.0 out of 10, Very good, (215 reviews)
"Quite place & clean ,Parking is wide"
Japan
RESTITUTA BULFA
The price is AED 266
AED 293 total
13 Dec - 14 Dec
Hotel Route Inn Hamanako
A balcony with wicker chairs and a table, overlooking a body of water and greenery.

2. Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado
2.0 star property
Kosai
7.0 out of 10, Good, (52 reviews)
"Wonderful hotel. Very quiet. Our room was huge!"
United States
Sigrid
The price is AED 110
AED 121 total
15 Nov - 16 Nov
Tabist Kosai Hamanako no Yado
Room

3. Grand Mercure Lake Hamana Resort & Spa

Grand Mercure Lake Hamana Resort & Spa
4.0 star property
Nishi Ward
8.0 out of 10, Very good, (713 reviews)
"Large 4 bedded room, two of which were temporary add-on beds, but they were comfortable. Onsen was good, a large area with all the amenities, and very popular with the locals. Very fun and authentic experience. Breakfast was a little chaotic, due to it being a Saturday morning, with lots of families and local travellers, but the food quality was good, with assorted dishes from various parts of Japan. Would recommend if you have your own transport, otherwise you are stuck in the hotel, or using a...
Singapore
Shiyun
The price is AED 161
AED 202 total
1 Dec - 2 Dec
Grand Mercure Lake Hamana Resort & Spa
A spacious lobby with a reception desk, a seating area, and a decorative plant centerpiece.

4. Hotel Associa Toyohashi

Hotel Associa Toyohashi
4.0 star property
Toyohashi
9.0 out of 10, Wonderful, (1,006 reviews)
"We love staying here and we always feel welcome. It is convenient for us to visit family close by. Great staff & facilities. The cleaning staff are so efficient & always happy."
Australia
Jeanette
The price is AED 208
AED 253 total
13 Dec - 14 Dec
Hotel Associa Toyohashi
A modern library with a central reading area, individual study tables, and a large window with blinds.

5. Comfort Hotel Hamamatsu

Comfort Hotel Hamamatsu
3.0 star property
Naka Ward
8.6 out of 10, Excellent, (513 reviews)
"Everything about the stay and hotel was well worth it"
Australia
George W
The price is AED 147
AED 162 total
30 Nov - 1 Dec
Comfort Hotel Hamamatsu
A hotel entrance with a glass door, a signboard with hotel name, and a visible entrance ramp.

6. Toyoko Inn Hamamatsu-eki Minami-guchi

Toyoko Inn Hamamatsu-eki Minami-guchi
3.0 star property
Naka Ward
9.0 out of 10, Wonderful, (45 reviews)
"Good budget hotel to stay there"
United States
Kenichi
The price is AED 193
AED 213 total
20 Nov - 21 Nov
Toyoko Inn Hamamatsu-eki Minami-guchi
A spacious lobby with a central staircase, a large mural, and a modern ceiling design.

7. Hamamatsu Marriott Hotel

Hamamatsu Marriott Hotel
5.0 star property
Naka Ward
8.4 out of 10, Very good, (43 reviews)
"We had a lovely stay here. Reasonably easy to walk from the train station, close to bus stops as well. Easy walk to Hamamatsu Castle and Park. Good sized room, well appointed and bonus Mt Fuji view from the window on a clear day"
Australia
Rachel
The price is AED 264
AED 320 total
13 Nov - 14 Nov
Hamamatsu Marriott Hotel
The exterior of the Centurion Hotel with a clear view of the entrance, including the name and address.

8. Centurion Hotel Hamamatsu

Centurion Hotel Hamamatsu
3.0 star property
Naka Ward
8.2 out of 10, Very good, (188 reviews)
"Very good!"
Japan
JESSICA VANESSA
The price is AED 107
AED 118 total
15 Nov - 16 Nov
Centurion Hotel Hamamatsu
A Daiwa Roynet Hotel with a modern design, featuring a grid of windows and a prominent hotel logo on the facade.

9. Daiwa Roynet Hotel Hamamatsu

Daiwa Roynet Hotel Hamamatsu
3.0 star property
Naka Ward
8.8 out of 10, Excellent, (1,003 reviews)
"Staff was welcoming and the on site Family Mart was convenient! "
Canada
Lauren
The price is AED 209
AED 254 total
15 Nov - 16 Nov
Daiwa Roynet Hotel Hamamatsu
A hand pressing elevator buttons.

10. Hotel Route Inn Toyohashi Ekimae

Hotel Route Inn Toyohashi Ekimae
3.0 star property
Toyohashi
8.8 out of 10, Excellent, (484 reviews)
"The hotel was clean, comfortable and conveniently located to everything necessary. The staff was incredibly helpful."
Canada
Aleena
The price is AED 232
AED 256 total
13 Dec - 14 Dec
Hotel Route Inn Toyohashi Ekimae
Restaurant

11. Richmond Hotel Hamamatsu

Richmond Hotel Hamamatsu
3.0 star property
Naka Ward
8.8 out of 10, Excellent, (712 reviews)
"Good location. Enjoyed our stay."
United States
Lawrence
The price is AED 207
AED 228 total
6 Dec - 7 Dec
Richmond Hotel Hamamatsu
A hotel lobby with a reception desk, glass doors, and a staircase.

12. Crowne Plaza - ANA Hamamatsu by IHG

Crowne Plaza - ANA Hamamatsu by IHG
3.5 star property
Naka Ward
8.0 out of 10, Very good, (368 reviews)
"Great location, friendly staff, very spacious rooms, and a delicious breakfast. I had a wonderful stay and would definitely recommend it."
United States
Raysir
The price is AED 149
AED 236 total
29 Nov - 30 Nov
Crowne Plaza - ANA Hamamatsu by IHG
A multi-story Comfort Hotel building with a modern facade, numerous windows, and a prominent signage.

13. Comfort Hotel Toyohashi

Comfort Hotel Toyohashi
3.0 star property
Toyohashi
8.6 out of 10, Excellent, (253 reviews)
"Great hotel, good rooms and complimentary breakfast, great staff as well! Area around the property isn't the best, but a great stay! "
United States
Joshua
The price is AED 188
AED 207 total
23 Nov - 24 Nov
Comfort Hotel Toyohashi
A buffet with various food options including meats, fruits, and vegetables.

14. APA Hotel Hamamatsueki Minami

APA Hotel Hamamatsueki Minami
3.0 star property
Naka Ward
7.2 out of 10, Good, (888 reviews)
"One of the best places to stay in the city! A laundry room with manga? Wuuuut Love it A+++"
Canada
Anselm
The price is AED 153
AED 185 total
15 Nov - 16 Nov
APA Hotel Hamamatsueki Minami
A modern hotel entrance with a prominent 'EN HOTEL' sign, a wooden deck, and potted plants.

15. EN HOTEL Hamamatsu

EN HOTEL Hamamatsu
3.0 star property
Naka Ward
8.0 out of 10, Very good, (414 reviews)
"AC look to be"
Australia
Bradley
The price is AED 130
AED 157 total
13 Dec - 14 Dec
EN HOTEL Hamamatsu
A pair of elevator doors with digital displays above them, set in a modern building interior.

16. Toyoko Inn Toyohashi Ekimae Odori

Toyoko Inn Toyohashi Ekimae Odori
3.0 star property
Toyohashi
The price is AED 201
AED 223 total
16 Nov - 17 Nov
Toyoko Inn Toyohashi Ekimae Odori
A buffet setup with various food items and serving utensils, a wooden counter, and a metallic backdrop.

17. Hamamatsu Hotel

Hamamatsu Hotel
3.5 star property
Naka Ward
8.2 out of 10, Very good, (380 reviews)
"Very nice hotel not far off the beaten path. 8 minute walk from train station. Breakfast buffet was delicious "
United States
Jeffrey
The price is AED 173
AED 209 total
6 Dec - 7 Dec
Hamamatsu Hotel
A hotel with a modern facade, large windows, and a prominent entrance with a covered area.

18. Loisir Hotel Toyohashi

Loisir Hotel Toyohashi
3.5 star property
Toyohashi
8.6 out of 10, Excellent, (646 reviews)
"It is always great to stay this hotel. "
Japan
INKEOL
The price is AED 417
AED 504 total
28 Nov - 29 Nov
Loisir Hotel Toyohashi
A hotel with a prominent sign, multiple floors, and surrounding commercial buildings.

19. Hotel Sorriso Hamamatsu

Hotel Sorriso Hamamatsu
3.0 star property
Naka Ward
8.4 out of 10, Very good, (517 reviews)
"I had another comfortable stay at this hotel! Its location is very convenient, as it is just a short walk from Hamamatsu Station. The staff are always friendly and welcoming, and the complimentary breakfast is excellent! I really enjoyed my stay and will definitely come back the next time I visit Hamamatsu."
United States
Kio
The price is AED 188
AED 229 total
13 Dec - 14 Dec
Hotel Sorriso Hamamatsu
A reception area with a counter, a clock, and a sign labeled "FRONT".

20. Hotel Route Inn Hamamatsunishi Inter

Hotel Route Inn Hamamatsunishi Inter
3.0 star property
Nishi Ward
8.4 out of 10, Very good, (256 reviews)
"Facility is clean"
Japan
Takatsugu
The price is AED 275
AED 303 total
13 Dec - 14 Dec
Hotel Route Inn Hamamatsunishi Inter
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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Stay near popular Kosai attractions

Arai Beach

7.0/10 (2 reviews)
Why not spend a carefree afternoon at Arai Beach during your travels in Kosai?
See properties

Learn more about Kosai

Between the golden shores of Arai Benten Beach and the tranquil waters of Lake Hamana, visitors find perfect spots for swimming and watersports. Explore the historic Sakichi Toyoda Memorial House before visiting ancient Ogaji Temple where locals still come to pray beneath centuries-old trees.

See all hotels in Kosai
A traditional Japanese gate with a tiled roof and a sign with Japanese characters.

Top Kosai Hotel Reviews

Room
Grand Mercure Lake Hamana Resort & Spa

Grand Mercure Lake Hamana Resort & Spa

Grand Mercure Lake Hamana Resort & Spa
Nishi Ward

10/10 Excellent

I really enjoyed my stay here. The onsen was so nice and well maintained. They offered drinks in a lounge like area before entering the onsen and after you get out. The local tea was so good, I think it was called usuchatou (the spelling might be wrong). The rooms were nice. The breakfast was so delicious and had a big variety. We were a group of 4 and stayed in a traditional Japanese style room and as Americans it was our first time having to lay out futons so it was fun. The staff were...
United States
alexandra
Reviewed October 20, 2026
Grand Mercure Lake Hamana Resort & Spa

Frequently Asked Questions

What are some of the best vacation rentals that Kosai has to offer?

CORRUGATED HOUSE - CORRUGATED HOUSE / Toyohashi Aichi: This vacation home rental near Kosai has air-conditioning and free WiFi to help you feel perfectly comfortable in your new surroundings. Kitchen amenities include a fridge, a stovetop, and kitchenware. See all vacation rentals in Kosai.

If I need to cancel my hotel reservation in Kosai, will I receive a refund?

Yes, you'll find most hotel bookings are fully refundable if cancelled before the accommodation's cancellation deadline, which often is within 24-48 hours of your check-in date. If you have a reservation that's non-refundable, you might still have the option to cancel and get a refund within 24 hours of your booking. Filter your search by fully refundable to find flexible hotel deals in Kosai.

Where can I learn more about changing or cancelling my trip to Kosai?

For more details about updating your trip to Kosai or cancelling it, head over to our customer service page.

What are some accommodations with pools in Kosai?

Grand Mercure Lake Hamana Resort & Spa: Offers a children's pool, a seasonal outdoor pool, and spa services. View all hotels with pools in Kosai.

What's the best hotel for staying near Chubu Centrair International Airport (NGO)?

Centrair Hotel is a popular 3.5-star hotel featuring a restaurant and free WiFi. It's located a short 0.1 mi (0.2 km) from Chubu Centrair Intl. Airport. Other choices near the airport are Toyoko Inn Chubu International Airport No.2 and Four Points by Sheraton Nagoya, Chubu International Airport.

What's it like to stay in Kosai?

Visitors can enjoy all that Kosai has to offer including its beaches. In Kosai, there are 6 hotels and other accommodations to choose from. Find out more about Kosai.

What should I do while I'm visiting Kosai?

Natural beauty is on display at Lake Hamana, Arai Beach, and Arai Benten Beach. Additionally, you might want to add Sakichi Toyoda Memorial House to your itinerary. Check out what more to see and do in Expedia's Kosai guide.

What's the seasonal weather like in Kosai?

The hottest months are usually August and July with an average temp of 76°F, while the coldest months are January and February with an average of 46°F. The rainiest months in Kosai are July, June, September, and October, with each month seeing an average of 12 inches of rainfall.

What's the best place for a stay in Kosai?

Based on our traveler data, Hotel Route Inn Hamanako is one of the top choices for your stay. This hotel offers a restaurant and free parking. Tabist Kosai Hamanako no Yado is another good option for your stay. See all available top hotels, or vacation rentals in Kosai.