Find hotels in Kosai from ￥4,487

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Our top choices for Kosai hotels

Public bath
Hotel Route Inn Hamanako

Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
3.0 star property
Kosai
8.0 out of 10, Very Good, (186)
Relax at this inviting Kosai retreat with free WiFi and parking. Enjoy Japanese cuisine at the restaurant or unwind with drinks at the bar. Located just a 10-minute walk from Lake Hamana, with easy access to Sakichi Toyoda Memorial House.
"very good"
Japan
たく
The price is ￥9,953
￥10,948 total
Dec 22 - Dec 23
Hotel Route Inn Hamanako
Terrace/patio
Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado
2.0 star property
Kosai
7.0 out of 10, Good, (45)
Japanese hospitality awaits at this waterfront guesthouse. Located near Lake Hamana and Sakichi Toyoda Memorial House, guests enjoy complimentary WiFi and parking. Mt. Fuji - Shizuoka Airport is a 66-minute drive, while Futagawa Station is just 18 minutes away.
"Wonderful hotel. Very quiet. Our room was huge!"
United States
Sigrid
The price is ￥4,060
￥4,487 total
Dec 21 - Dec 22
Tabist Kosai Hamanako no Yado
Exterior
Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu
4.5 star property
Naka Ward
9.0 out of 10, Wonderful, (1002)
Luxury accommodation with 3 restaurants including Italian cuisine at Figaro. Just an 8-minute walk from Hamamatsu Station and close to the Museum of Musical Instruments. The helpful staff ensures a memorable stay in this well-maintained hotel.
"great breakfast."
United States
Owen
The price is ￥16,116
￥19,501 total
Jan 7 - Jan 8, 2026
Okura Act City Hotel Hamamatsu
Property amenity
GREENITY IWATA

GREENITY IWATA

GREENITY IWATA
3.0 star property
Iwata
10.0 out of 10, Exceptional, (28)
"Everything about the hotel was amazing. From the room layout and appearance to the bar and staff. I will definitely be staying here again the next time I come to Japan."
United States
Jonathan
The price is ￥17,741
￥19,555 total
Jan 15 - Jan 16, 2026
GREENITY IWATA
Lobby
Comfort Hotel Toyohashi

Comfort Hotel Toyohashi

Comfort Hotel Toyohashi
3.0 star property
Toyohashi
8.8 out of 10, Excellent, (220)
Just a 4-minute walk from Toyohashi Station, this convenient hotel offers complimentary buffet breakfast and Wi-Fi. Popular attractions like Kalmia Mall and Cocola Avenue are nearby, making it an ideal base for exploring the area.
"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 ￥6,727
￥7,400 total
Jan 12 - Jan 13, 2026
Comfort Hotel Toyohashi
Exterior
Loisir Hotel Toyohashi

Loisir Hotel Toyohashi

Loisir Hotel Toyohashi
3.5 star property
Toyohashi
8.6 out of 10, Excellent, (622)
This business-friendly hotel offers 3 restaurants and complimentary perks including WiFi and parking. Close to popular attractions like Cocola Avenue and Kalmia Mall, guests consistently praise the helpful staff and clean, well-maintained rooms.
"Second time back this month, and impressed. I expected to feel something amiss but everything was great, from the room, the washroom, bed and quietness. This time we took the breakfast as well and it was quite the variety. Definitely worth coming here."
Canada
Christopher
The price is ￥11,466
￥13,875 total
Dec 19 - Dec 20
Loisir Hotel Toyohashi
Hot springs
Dormy Inn EXPRESS Toyohashi Hot Spring

Dormy Inn EXPRESS Toyohashi Hot Spring

Dormy Inn EXPRESS Toyohashi Hot Spring
3.0 star property
Toyohashi
9.0 out of 10, Wonderful, (151)
Experience this modern hotel's soothing hot springs while exploring nearby Toyohashi City Museum and Yoshida Castle. Just a 12-minute walk from Toyohashi Station, guests enjoy convenient access to local attractions with free WiFi.
"so nice!! this hotel had top-notch facilities and outstanding hospitality!!"
Japan
SHUNSNKE
The price is ￥8,456
￥9,365 total
Dec 24 - Dec 25
Dormy Inn EXPRESS Toyohashi Hot Spring
Lobby
Grand Mercure Lake Hamana Resort & Spa

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, (600)
Relaxation awaits at this Lake Hamana hotel with seasonal pools for all ages. Enjoy pampering massages, garden strolls, and on-site dining after exploring nearby Hamanako Garden Park, with free WiFi and parking for convenience.
"Great location!"
United States
Bilal
The price is ￥9,835
￥12,199 total
Jan 15 - Jan 16, 2026
Grand Mercure Lake Hamana Resort & Spa
Front of property
HOTEL SUI HAMAMATSU

HOTEL SUI HAMAMATSU

HOTEL SUI HAMAMATSU
3.5 star property
Naka Ward
9.2 out of 10, Wonderful, (265)
Located just a 12-minute walk from Hamamatsu Station, this hotel offers convenient access to Hamamatsu Castle and Diorama Factory Museum. Free WiFi enhances your stay while the 24-hour front desk ensures round-the-clock assistance.
"breakfast was curated of local food, absolutely loved it. "
United States
Tian
The price is ￥7,813
￥8,653 total
Jan 12 - Jan 13, 2026
HOTEL SUI HAMAMATSU
Lobby
EN HOTEL Hamamatsu

EN HOTEL Hamamatsu

EN HOTEL Hamamatsu
3.0 star property
Naka Ward
8.0 out of 10, Very Good, (352)
Stylish accommodation just a 9-minute walk from Hamamatsu Station. Travelers praise the well-maintained facilities while exploring nearby attractions like the Observation Deck and Diorama Factory Museum. Enjoy free WiFi during your stay.
"Great location and new clean hotel."
United States
Douglass
The price is ￥5,417
￥6,555 total
Jan 5 - Jan 6, 2026
EN HOTEL Hamamatsu
Lobby
Marugen

Marugen

Marugen
2.0 star property
Iwata
8.6 out of 10, Excellent, (23)
Experience authentic hospitality at this tranquil Iwata guesthouse, offering complimentary morning meals, WiFi and parking. Explore nearby Fukuda Beach and Ryuyo Insect Nature Observation Park during your stay.
"近くの釣りスポットに行きやすかったです！"
Japan
mathui
The price is ￥11,091
￥12,200 total
Dec 17 - Dec 18
Marugen
Spa
Hazuki

Hazuki

Hazuki
3.0 star property
Shinshiro
9.4 out of 10, Exceptional, (18)
In Shinshiro, this ryokan offers soothing spa services and on-site hot springs for complete relaxation. Enjoy a meal at the restaurant after exploring nearby Yuya Hot Spring and Toshogu, with Yuyaonsen Station just steps away.
"Nice"
Japan
Tomoki
The price is ￥36,364
￥44,000 total
Dec 24 - Dec 25
Hazuki
Exterior
Hamanako Wan Wan Paradise Hotel

Hamanako Wan Wan Paradise Hotel

Hamanako Wan Wan Paradise Hotel
3.0 star property
Nishi Ward
8.4 out of 10, Very Good, (44)
Traditional Japanese ryokan situated on Lake Hamana with rejuvenating hot springs on site. Just a short drive from Hamamatsu City Zoo, this tranquil retreat offers convenient 24-hour front desk service and complimentary parking.
"スタッフの対応"
Japan
yukie
The price is ￥17,558
￥19,809 total
Dec 25 - Dec 26
Hamanako Wan Wan Paradise Hotel
Chapel
Tabist Katahara Resort Gamagori

Tabist Katahara Resort Gamagori

Tabist Katahara Resort Gamagori
2.5 star property
Gamagori
6.6 out of 10, (22)
Surrounded by natural beauty, this Katahara hotel offers daily housekeeping and complimentary parking. Just a 20-minute walk from Mikawa Kashima Station and close to the Gamagori Museum, it provides a peaceful base with in-room coffeemakers.
"Considering the price, it makes sense"
Japan
しんいち
The price is ￥6,983
￥7,710 total
Jan 11 - Jan 12, 2026
Tabist Katahara Resort Gamagori
Exterior
Hotel Associa Toyohashi

Hotel Associa Toyohashi

Hotel Associa Toyohashi
4.0 star property
Toyohashi
9.0 out of 10, Wonderful, (999)
Japanese dining options await at this well-maintained hotel just 1 minute from Toyohashi Station. Relax in the welcoming lobby lounge with a drink, or explore nearby Kalmia Mall and Cocola Avenue. Guests love the property condition and convenient transit connections.
"Staff were very kind !"
Canada
Yosuke
The price is ￥8,852
￥10,711 total
Jan 4 - Jan 5, 2026
Hotel Associa Toyohashi
Free toiletries, hair dryer, slippers, electronic bidet
Tennomaru

Tennomaru

Tennomaru
4.0 star property
Kota
9.0 out of 10, Wonderful, (19)
Immerse in authentic hospitality at this Japanese ryokan offering spa treatments and delicious cuisine at Hoshi no Fune restaurant. Enjoy convenient free WiFi, parking, and train station pickup while exploring nearby Gamagori attractions.
"朝食付きのプラン 1人づつのお膳でした。出来立ての卵焼きや魚の揚げ物が着席後に提供されました。大変美味しかったです。"
Japan
MASAYUKI
The price is ￥21,323
￥23,455 total
Dec 18 - Dec 19
Tennomaru
Luxury King, Non Smoking | City view
Hotel Arc Riche Toyohashi

Hotel Arc Riche Toyohashi

Hotel Arc Riche Toyohashi
3.5 star property
Toyohashi
9.4 out of 10, Exceptional, (199)
Elegant French cuisine awaits at this hotel with 2 restaurants and bars. Located a 2-minute walk from Shin-Toyohashi Station, travelers can easily explore Cocola Avenue and Kalmia Mall. A fitness center and free WiFi enhance your stay.
"Very well presented hotel, easy walk to train station. Very nice lounge area. "
United Kingdom
David
The price is ￥12,518
￥13,770 total
Dec 21 - Dec 22
Hotel Arc Riche Toyohashi
Spa
Hazu Gassyo

Hazu Gassyo

Hazu Gassyo
3.0 star property
Shinshiro
8.8 out of 10, Excellent, (5)
Traditional Japanese hospitality awaits at this ryokan near Yuya Hot Spring and Toshogu. Enjoy complimentary breakfast before unwinding with therapeutic massages. The peaceful garden and terrace offer serene moments just 7 minutes from the station.
"愛知県の自然に囲まれた素敵なお宿でした。愛知県在住ですが、なかなか県内旅行の機会はありませんでした。今回コロナで県外への行動制限により、このような発見ができてよかったです。古い建物ですので最新の設備ではありませんが、清潔で快適に過ごすことができました。(自然の中ですので虫は仕方がないと思います。) お食事も地産地消で楽しめました。忘れ物をしてしまいましたが、丁寧な梱包で迅速に対応して頂けました。"
Japan
Anonymous traveler
The price is ￥66,000
￥79,860 total
Jan 16 - Jan 17, 2026
Hazu Gassyo
Reception
Hotel Route-Inn Toyokawa Inter

Hotel Route-Inn Toyokawa Inter

Hotel Route-Inn Toyokawa Inter
3.0 star property
Toyokawa
8.2 out of 10, Very Good, (132)
Enjoy free WiFi and parking at this inviting hotel near Toyokawa City Sakuragaoka Museum. Just a 14-minute walk from Mikawa-Ichinomiya Station, the convenient location offers easy access to Kamo Iris Garden with 24-hour front desk service.
"Good"
United States
Samuel
The price is ￥10,789
￥11,868 total
Dec 22 - Dec 23
Hotel Route-Inn Toyokawa Inter
Front of property
Hotel Sorriso Hamamatsu

Hotel Sorriso Hamamatsu

Hotel Sorriso Hamamatsu
3.0 star property
Naka Ward
8.4 out of 10, Very Good, (456)
Located just a 2-minute walk from Hamamatsu Station, this hotel offers a complimentary buffet breakfast daily. Explore nearby attractions like the Observation Deck and Diorama Factory Museum, then return to enjoy free WiFi and comfortable accommodations.
"Close to train station, extremely clean, very nice breakfast, comfortable bed, room quite small"
Canada
Mike
The price is ￥7,797
￥9,637 total
Jan 4 - Jan 5, 2026
Hotel Sorriso Hamamatsu
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

Why not spend a carefree afternoon at Arai Beach during your travels in Kosai?
See properties

Arai Benten Beach

Why not spend a carefree afternoon at Arai Benten 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

Top Kosai Hotel Reviews

Richmond Hotel Hamamatsu

Richmond Hotel Hamamatsu

10/10 Excellent
"The staff's response was good"
Masaaki 1-night trip
Posted 9 days ago
Richmond Hotel Hamamatsu

More cheap stays in Kosai

HOTEL LiVEMAX Hamamatsu-Ekimae

HOTEL LiVEMAX Hamamatsu-Ekimae

Kajimachi Plaza 6F Hamamatsu
The price is ￥4,814 per night from Jan 6 to Jan 7
￥4,814
￥5,824 total
Jan 6 - Jan 7, 2026
7/10 Good! (295 reviews)

Hotels in Kosai with star-rating

Frequently asked questions

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 is a short 7-minute walk from Lake Hamana, and it 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.
What are some of the best vacation rentals that Kosai has to offer?
Shell Beach Hamana Lake Relax with the sound of - Osaki Villa / Hamamatsu Shizuoka: This vacation home rental near Kosai offers a garden, a barbecue grill, and air-conditioning to help you feel perfectly comfortable in your new surroundings. Kitchen amenities include a fridge, a stovetop, and a microwave. 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: Hotel, 1-minute walk from Lake Hamana. Features 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 7 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 Arai Beach, Lake Hamana, 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.

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