Search Kosai Cottage Rentals

  • Change your mind

    Book hotels with free cancellation

  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
    Sign in

  • Be picky

    Search almost a million properties worldwide

Find vacation rentals that suit your style

Apartment image
Apartments
Apartments
Condo image
Condos
Condos

Check prices for these dates

Next weekend
Nov 20 - Nov 22
In two weeks
Nov 27 - Nov 29
In one month
Dec 11 - Dec 13
In two months
Jan 8 - Jan 10
No exact matches found, but these alternatives could be just right

Recommended hotels in Kosai

A multi-story hotel with a green roof and numerous windows.

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 ￥11,463
￥12,645 total
Dec 10 - Dec 11
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 ￥4,472
￥4,953 total
Nov 15 - Nov 16
Tabist Kosai Hamanako no Yado
Exterior

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)
"Great breakfast, really nice onsen. "
United Kingdom
Katarina
The price is ￥7,024
￥8,798 total
Dec 1 - Dec 2
Grand Mercure Lake Hamana Resort & Spa
A modern hotel with a prominent sign, a parking area, and a pedestrian bridge.

4. Hotel Associa Toyohashi

Hotel Associa Toyohashi
4.0 star property
Toyohashi
9.0 out of 10, Wonderful, (1,003 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 ￥9,221
￥11,176 total
Dec 10 - Dec 11
Hotel Associa Toyohashi
A multi-story hotel with a beige facade, numerous windows, and a distinctive curved balcony design on the right side.

5. 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 ￥7,147
￥7,915 total
Nov 29 - Nov 30
Hamamatsu Hotel
A marina with several boats docked, a pier extending into the water, and a distant mountain range.

6. Minshuku Takahashi Kashibuneten

Minshuku Takahashi Kashibuneten
2.5 star property
Nishi Ward
9.6 out of 10, Exceptional, (61 reviews)
"The view and the owner is very helpful and kind"
United States
Yoong
The price is ￥9,400
￥10,400 total
Nov 13 - Nov 14
Minshuku Takahashi Kashibuneten
A hotel sign with the name "EN HOTEL" and a circular logo.

7. EN HOTEL Hamamatsu

EN HOTEL Hamamatsu
3.0 star property
Naka Ward
8.0 out of 10, Very good, (413 reviews)
"AC look to be"
Australia
Bradley
The price is ￥5,819
￥7,041 total
Nov 29 - Nov 30
EN HOTEL Hamamatsu
A multi-story hotel with a modern facade, a visible entrance, and a parking structure adjacent to it.

8. HOTEL SUI HAMAMATSU

HOTEL SUI HAMAMATSU
3.5 star property
Naka Ward
9.0 out of 10, Wonderful, (220 reviews)
"We had a lovely stay. The room was spacious and comfortable, the breakfast was delicious and the staff were absolutely beautiful — so friendly and welcoming. We really enjoyed our time here and would happily stay again."
Australia
Jane
The price is ￥5,584
￥6,220 total
Nov 23 - Nov 24
HOTEL SUI 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, (1,001 reviews)
"Staff was welcoming and the on site Family Mart was convenient! "
Canada
Lauren
The price is ￥7,690
￥9,408 total
Nov 15 - Nov 16
Daiwa Roynet Hotel Hamamatsu
A hotel named Hotel Sorriso with a modern architectural design, featuring a prominent sign and reflective glass windows.

10. Hotel Sorriso Hamamatsu

Hotel Sorriso Hamamatsu
3.0 star property
Naka Ward
8.4 out of 10, Very good, (516 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 ￥8,182
￥9,900 total
Nov 29 - Nov 30
Hotel Sorriso Hamamatsu
A building with a sign that reads "HOTEL ASCENT PLAZA".

11. Hotel Ascent Plaza Hamamatsu

Hotel Ascent Plaza Hamamatsu
3.0 star property
Naka Ward
7.8 out of 10, Good, (124 reviews)
"Hotel is clean and right in the middle of the shooting, restaurants, bars and cafes etc. No breakfast or ammentities currently. Appears to be an older type hotel "
United States
Brian
The price is ￥6,326
￥7,094 total
Nov 23 - Nov 24
Hotel Ascent Plaza Hamamatsu
A Marriott hotel with a modern design, featuring a prominent 'Marriott' sign, a spacious lobby, and a well-maintained outdoor area.

12. 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 ￥11,501
￥13,916 total
Nov 10 - Nov 11
Hamamatsu Marriott Hotel
A modern hotel building with a prominent "HOTEL LEON" sign.

13. Hotel Leon Hamamatsu

Hotel Leon Hamamatsu
3.0 star property
Naka Ward
8.4 out of 10, Very good, (276 reviews)
"closed to shopping area. The hotel staffs are so friendly and kind."
United States
Junko
The price is ￥5,804
￥6,442 total
Nov 15 - Nov 16
Hotel Leon Hamamatsu
A multi-story hotel with a modern facade, featuring a mix of brick and glass elements.

14. 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 ￥6,000
￥6,600 total
Dec 9 - Dec 10
Comfort Hotel Hamamatsu
A reception desk with a neon sign, two computers, and a trash bin.

15. Toyoko Inn Toyohashi Ekimae Odori

Toyoko Inn Toyohashi Ekimae Odori
3.0 star property
Toyohashi
The price is ￥8,590
￥9,545 total
Nov 16 - Nov 17
Toyoko Inn Toyohashi Ekimae Odori
A multi-story hotel with a modern design, featuring a prominent corner entrance and illuminated windows.

16. Hotel Arc Riche Toyohashi

Hotel Arc Riche Toyohashi
4.0 star property
Toyohashi
9.4 out of 10, Exceptional, (241 reviews)
"I recommend this Property nice place to stay"
Canada
rogelio
The price is ￥13,909
￥15,300 total
Nov 23 - Nov 24
Hotel Arc Riche Toyohashi
The exterior of the Centurion Hotel with a clear view of the entrance, including the name and address.

17. Centurion Hotel Hamamatsu

Centurion Hotel Hamamatsu
3.0 star property
Naka Ward
8.2 out of 10, Very good, (187 reviews)
"Very good!"
Japan
JESSICA VANESSA
The price is ￥4,818
￥5,300 total
Nov 23 - Nov 24
Centurion Hotel Hamamatsu
A modern building with a curved facade, large windows, and a staircase leading to an upper level.

18. 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, (367 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 ￥5,950
￥9,620 total
Nov 23 - Nov 24
Crowne Plaza - ANA Hamamatsu by IHG
A multi-story Comfort Hotel building with a modern facade, numerous windows, and a prominent signage.

19. Comfort Hotel Toyohashi

Comfort Hotel Toyohashi
3.0 star property
Toyohashi
8.6 out of 10, Excellent, (252 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 ￥8,182
￥9,000 total
Nov 15 - Nov 16
Comfort Hotel Toyohashi
A multi-story hotel with a green and beige facade, multiple windows, and a sign indicating it is a hotel.

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 ￥11,356
￥12,565 total
Dec 10 - Dec 11
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.
View all 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 reviews in Kosai

Exterior
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

Explore a world of travel with Expedia