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Check prices for these dates

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

Recommended hotels in Kosai

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 AU$117
14 Dec - 15 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 AU$46
7 Dec - 8 Dec
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)
"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 AU$80
3 Dec - 4 Dec
Grand Mercure Lake Hamana Resort & Spa
A hotel room with a bed, a desk with a computer, a TV, a chair, a sofa, and a view of the city at dusk.

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 AU$103
23 Nov - 24 Nov
Hotel Associa Toyohashi
A buffet setup with various food items and serving utensils, a wooden counter, and a metallic backdrop.

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 AU$79
15 Nov - 16 Nov
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 AU$89
7 Dec - 8 Dec
Minshuku Takahashi Kashibuneten
A hotel named Hotel Sorriso with a modern architectural design, featuring a prominent sign and reflective glass windows.

7. 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 AU$91
29 Nov - 30 Nov
Hotel Sorriso Hamamatsu
A hotel reception area with a reception desk, seating area, and a decorative plant in the center.

8. HOTEL SUI HAMAMATSU

HOTEL SUI HAMAMATSU
3.5 star property
Naka Ward
9.0 out of 10, Wonderful, (222 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 AU$68
6 Dec - 7 Dec
HOTEL SUI HAMAMATSU
A modern hotel entrance with a prominent 'EN HOTEL' sign, a wooden deck, and potted plants.

9. EN HOTEL Hamamatsu

EN HOTEL Hamamatsu
3.0 star property
Naka Ward
8.0 out of 10, Very good, (415 reviews)
"AC look to be"
Australia
Bradley
The price is AU$63
13 Dec - 14 Dec
EN HOTEL Hamamatsu
A modern library with wooden tables and chairs, bookshelves, and a large window with blinds.

10. 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 AU$61
14 Dec - 15 Dec
Comfort Hotel Hamamatsu
A Daiwa Roynet Hotel with a modern design, featuring a grid of windows and a prominent hotel logo on the facade.

11. 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 AU$99
15 Nov - 16 Nov
Daiwa Roynet Hotel Hamamatsu
A modern indoor swimming pool with a wooden ceiling and tiled floor, surrounded by black seating and potted plants.

12. 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 AU$102
14 Dec - 15 Dec
Hotel Route Inn Toyohashi Ekimae
A long, narrow hotel corridor with wooden doors on both sides and a carpeted floor.

13. 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 AU$47
15 Nov - 16 Nov
Centurion Hotel Hamamatsu
A modern gym with exercise equipment, a wall of dumbbells, and large windows.

14. 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 AU$93
29 Nov - 30 Nov
Crowne Plaza - ANA Hamamatsu by IHG
A hotel room with two beds, a desk, a chair, and a small table.

15. Comfort Hotel Toyohashi

Comfort Hotel Toyohashi
3.0 star property
Toyohashi
8.6 out of 10, Excellent, (254 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 AU$82
15 Nov - 16 Nov
Comfort Hotel Toyohashi
A spacious lobby with a central staircase, a large mural, and a modern ceiling design.

16. Hamamatsu Marriott Hotel

Hamamatsu Marriott Hotel
5.0 star property
Naka Ward
8.4 out of 10, Very good, (45 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 AU$127
18 Nov - 19 Nov
Hamamatsu Marriott Hotel
A modern staircase with glass railings and wooden steps.

17. Toyoko Inn Toyohashi Ekimae Odori

Toyoko Inn Toyohashi Ekimae Odori
3.0 star property
Toyohashi
The price is AU$96
15 Nov - 16 Nov
Toyoko Inn Toyohashi Ekimae Odori
A spacious hotel lobby with a central island, seating areas, and a variety of amenities including a bar and a dining area.

18. Hotel Concorde Hamamatsu

Hotel Concorde Hamamatsu
3.5 star property
Naka Ward
8.0 out of 10, Very good, (208 reviews)
"朝食をレストランでいただきました。地元産の物があり美味しかったです。"
Japan
西川
The price is AU$92
14 Dec - 15 Dec
Hotel Concorde Hamamatsu
A hotel room with a large window offering a city view at night, a bed, a desk with a chair, and a TV.

19. 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 AU$129
14 Dec - 15 Dec
Hotel Arc Riche Toyohashi
A buffet with various food options including meats, fruits, and vegetables.

20. 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 AU$74
15 Nov - 16 Nov
APA Hotel Hamamatsueki Minami
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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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

Nice place, clean room and great facilities around the hotel complex. Free parking. Awesome breakfast with choices of different cuisine.
Australia
Edmond
Reviewed May 14, 2026
Grand Mercure Lake Hamana Resort & Spa

Frequently Asked Questions

Searching for B&Bs in Kosai?

Whether you're on a romantic holiday and want to stay somewhere quiet, or you're travelling solo and hoping to make some connections, a B&B might be the right choice for your trip. If you'd like to spend some time by the water during your time in Kosai, Arai Beach and Arai Benten Beach are worth a stop.

Why should you consider B&Bs instead of traditional hotels?

With attentive service, an atmosphere suited to mingling with other guests and of course a full breakfast, B&Bs all have a one-of-a-kind environment.

When should I stay at a B&B in Kosai?

When you're dreaming of a trip to Kosai, year-round temperatures and rainfall may be important factors to consider. The hottest months are usually August and July, with an average temperature of 25°C, while the coldest months are January and February, with an average of 8°C. The rainiest months in Kosai are July, June, September and October, with each month seeing an average of 293 mm of rainfall.

What is there to do in Kosai?

Spend some time exploring Lake Hamana and Arai Beach if you're hoping to see some of the area's natural features. You should put Arai Benten Beach and Sakichi Toyoda Memorial House on your list if you want to see more of the area.

How can I get to and around Kosai?

Planning your excursions in and around Kosai is easier with these transportation options. Fly into Shizuoka (FSZ-Mt. Fuji - Shizuoka), which is located 38.5 mi (62 km) away from the heart of the city. Otherwise, look for flights into Nagoya (NGO-Chubu Centrair Intl.), which is 43.9 mi (70.6 km) away. If you'd like to venture out around the area, you may want a rental car for your journey.