A stone lantern, a pine tree, and a coastal view.

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Check prices for these dates

Tonight
9 Sep - 10 Sep
Tomorrow
10 Sep - 11 Sep
This weekend
11 Sep - 13 Sep
Next weekend
18 Sep - 20 Sep

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Our top choices for Kosai hotels

1. Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
Kosai
Japan
RESTITUTA BULFA
SAR 306
SAR 336 total
9 Oct - 10 Oct
Hotel Route Inn Hamanako

2. Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado
Kosai
United States
Sigrid
SAR 103
SAR 115 total
28 Sep - 29 Sep
Tabist Kosai Hamanako no Yado

3. Kaze no Tani no Iori

Kaze no Tani no Iori
Kota
Japan
mitsuyo
SAR 1,933
SAR 2,127 total
15 Sep - 16 Sep
Kaze no Tani no Iori

4. Tennomaru

Tennomaru
Kota
Japan
RIHO
SAR 651
SAR 720 total
8 Oct - 9 Oct
Tennomaru

5. Tabist Katahara Resort Gamagori

Tabist Katahara Resort Gamagori
Gamagori
Japan
しんいち
SAR 285
SAR 314 total
14 Sep - 15 Sep
Tabist Katahara Resort Gamagori

6. Hotel Tatsuki

Hotel Tatsuki
Nishiuracho
Japan
久美子
SAR 1,158
SAR 1,282 total
13 Sep - 14 Sep
Hotel Tatsuki

7. Tenku Kaiyu no Yado Suehiro

Tenku Kaiyu no Yado Suehiro
Nishiuracho
Saudi Arabia
Tyler Francis
SAR 728
SAR 817 total
5 Oct - 6 Oct
Tenku Kaiyu no Yado Suehiro

8. shunkeiroman ginpaso

shunkeiroman ginpaso
Nishiuracho
Japan
HIROTAKA
SAR 1,446
SAR 1,601 total
29 Sep - 30 Sep
shunkeiroman ginpaso

9. Gamagori Hotel

Gamagori Hotel
Gamagori
United States
Mario
SAR 232
SAR 263 total
8 Oct - 9 Oct
Gamagori Hotel

10. Hotel Meizanso

Hotel Meizanso
Gamagori
United States
Sally
SAR 774
SAR 859 total
8 Oct - 9 Oct
Hotel Meizanso

11. Hiranoya

Hiranoya
Gamagori
United States
Eric
SAR 482
SAR 537 total
5 Oct - 6 Oct
Hiranoya

12. Henn na Hotel Lagunatenbosch

Henn na Hotel Lagunatenbosch
Gamagori
United States
Carina
SAR 475
SAR 584 total
15 Sep - 16 Sep
Henn na Hotel Lagunatenbosch

13. Toyokawa Grand Hotel

Toyokawa Grand Hotel
Toyokawa
SAR 249
SAR 276 total
13 Sep - 14 Sep
Toyokawa Grand Hotel

14. Comfort Hotel Toyokawa

Comfort Hotel Toyokawa
Toyokawa
United States
Henry
SAR 200
SAR 220 total
4 Oct - 5 Oct
Comfort Hotel Toyokawa

15. Hotel Crown Hills Toyokawa

Hotel Crown Hills Toyokawa
Toyokawa
Japan
Takuya
SAR 251
SAR 306 total
4 Oct - 5 Oct
Hotel Crown Hills Toyokawa

16. Comfort Inn Toyokawa Inter

Comfort Inn Toyokawa Inter
Toyokawa
United States
Hong W.
SAR 173
SAR 191 total
6 Oct - 7 Oct
Comfort Inn Toyokawa Inter

17. Hotel Route-Inn Toyokawa Inter

Hotel Route-Inn Toyokawa Inter
Toyokawa
United States
Samuel
SAR 362
SAR 398 total
9 Oct - 10 Oct
Hotel Route-Inn Toyokawa Inter

18. Okadaya Bayside

Okadaya Bayside
Toyohashi
Japan
??
SAR 184
SAR 204 total
13 Sep - 14 Sep
Okadaya Bayside

19. Toyoko Inn Toyohashi Station Higashi

Toyoko Inn Toyohashi Station Higashi
Toyohashi
Australia
John
SAR 210
SAR 233 total
10 Sep - 11 Sep
Toyoko Inn Toyohashi Station Higashi

20. Hotel Associa Toyohashi

Hotel Associa Toyohashi
Toyohashi
United States
Sanae
SAR 243
SAR 294 total
13 Sep - 14 Sep
Hotel Associa Toyohashi
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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?
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Arai Benten Beach

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

After visiting Myoryuji Temple, make a plan to see the other sights and activities in Kosai. Take in the festivals and desert landscape in the area.
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Honkoji Temple

After visiting Honkoji Temple, make a plan to see the other sights and activities in Kosai. Experience the area's festivals and musical theater.
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Sakichi Toyoda Memorial House

6.0/10 (2 reviews)
You can learn about the history of Kosai with a stop at Sakichi Toyoda Memorial House. Stroll along the lakeside or discover the area's desert landscape.
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Ogaji Temple

6.0/10 (2 reviews)
After visiting Ogaji Temple, make a plan to see the other sights and activities in Kosai. Amble around the area's lakeside or experience its festivals.
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Road Station Shiomisaka

Road Station Shiomisaka is just one of the places to see in Kosai, so why not enjoy the other things to explore during your travels? While you're in the area, wander around the natural setting.
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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 coastal city with a marina, buildings, and a forested hill.

Top Kosai Hotel Reviews

Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu

10/10 Excellent
"Everything was good. Want to stay again."
JAE HO 1-night trip
Posted 21 hours ago
Okura Act City Hotel Hamamatsu
Dormy Inn EXPRESS Toyohashi Hot Spring

Dormy Inn EXPRESS Toyohashi Hot Spring

10/10 Excellent
"If you are staying in Toyohashi, this motel is great. The rooms were a nice size and clean. The only issue I had was with the pillows...so hard. Breakfast was great! Staff was amazing!"
Hayley 5-night trip
Posted 9 days ago
Dormy Inn EXPRESS Toyohashi Hot Spring
Crowne Plaza - ANA Hamamatsu by IHG

Crowne Plaza - ANA Hamamatsu by IHG

10/10 Excellent
"Friendly and helpful staff. Amazing breakfast! Very conveniently located at the train station. Thank you! ありがとう!"
Jason 3-night trip
Posted 1 month ago
Crowne Plaza - ANA Hamamatsu by IHG
EN HOTEL Hamamatsu

EN HOTEL Hamamatsu

8/10 Good
"Overall the stay was great. I just wish there were more power outlets in the room. The one by the door was too loose and couldn't be used properly. There was one power strip on the wall but that was it The one thing we didn't like was the smoking room in one corner of the main lobby. Even though it has a door isolating it, the smell of cigarette was still strong around the lobby and reception area."
Guilherme 3-night trip
Posted 4 months ago
EN HOTEL Hamamatsu
Hamamatsu Marriott Hotel

Hamamatsu Marriott Hotel

10/10 Excellent
"Staff was amazing. Gorgeous faculty. Large, well appointed rooms. Will definitely recommend to friends"
Linda 2-night trip
Posted 4 months ago
Hamamatsu Marriott Hotel
HOTEL SUI HAMAMATSU

HOTEL SUI HAMAMATSU

10/10 Excellent
"If you are sea eel lover , to be good to stay. And city accessibility is perfect. 711, kanesue super market are less than 10mints to go"
Morikazu 2-night trip
Posted 4 months ago
HOTEL SUI HAMAMATSU

More cheap stays in Kosai

Hotel South Garden Hamamatsu

Hotel South Garden Hamamatsu

325-30 Sunayamacho Hamamatsu Shizuoka
SAR 144
SAR 159 total
13 Sep - 14 Sep
7.6/10 Good! (51 reviews)
Hotel South Garden Hamamatsu
365BASE outdoor hostel

365BASE outdoor hostel

2-1-25 Hikuma, Naka-ku Hamamatsu Shizuoka-ken
SAR 145
SAR 160 total
30 Sep - 1 Oct
8.2/10 Very Good! (41 reviews)
365BASE outdoor hostel
AB Hotel Iwata

AB Hotel Iwata

1-5-1 Nakaizumi, Iwata-shi Iwata Shizuoka Prefecture
SAR 147
SAR 162 total
30 Sep - 1 Oct
10/10 Exceptional! (2 reviews)
AB Hotel Iwata
Castle Inn Toyokawa

Castle Inn Toyokawa

14-1 Shimonagayamacho Toyokawa Aichi Prefecture
SAR 193
SAR 215 total
14 Sep - 15 Sep
10/10 Exceptional! (4 reviews)
Castle Inn Toyokawa
HOTEL LiVEMAX Hamamatsu-Ekimae

HOTEL LiVEMAX Hamamatsu-Ekimae

Kajimachi Plaza 6F Hamamatsu
SAR 199
SAR 241 total
28 Sep - 29 Sep
HOTEL LiVEMAX Hamamatsu-Ekimae
Tabist Katahara Resort Gamagori

Tabist Katahara Resort Gamagori

Kanehira-cho Kaido 29 Gamagori Aichi
SAR 285
SAR 314 total
14 Sep - 15 Sep
6.2/10 (25 reviews)
Tabist Katahara Resort Gamagori

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 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?
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: 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 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.