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Check prices for these dates

Tonight
28 Feb - 1 Mar
Tomorrow
1 Mar - 2 Mar
Next weekend
6 Mar - 8 Mar
In two weeks
13 Mar - 15 Mar

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Our top choices for Kosai hotels

Terrace/patio

Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado
2.0 star property
Kosai
7.2 out of 10, Good, (47 reviews)
"Wonderful hotel. Very quiet. Our room was huge!"
United States
Sigrid
The price is NZ$54
3 Mar - 4 Mar
Tabist Kosai Hamanako no Yado
Food and drink

Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
3.0 star property
Kosai
8.0 out of 10, Very good, (190 reviews)
"very good"
Japan
たく
The price is NZ$127
5 Mar - 6 Mar
Hotel Route Inn Hamanako
Free daily continental breakfast

Tabist IWATA Station Hotel

Tabist IWATA Station Hotel
3.5 star property
Iwata
7.2 out of 10, Good, (153 reviews)
"Convenient location near the train station and the staff were all really friendly "
United Kingdom
Jamie Lee
The price is NZ$82
29 Mar - 30 Mar
Tabist IWATA Station Hotel
Exterior

Kuretake Inn Iwata

Kuretake Inn Iwata
3.0 star property
Iwata
8.4 out of 10, Very good, (65 reviews)
"The hotel and room were nice. The front desk staff was very helpful in securing us transportation for the following morning. "
United States
Wayne
The price is NZ$206
2 Mar - 3 Mar
Kuretake Inn Iwata
Restaurant

Hotel Route Inn Iwata Inter

Hotel Route Inn Iwata Inter
3.0 star property
Iwata
8.4 out of 10, Very good, (188 reviews)
"Next to a small shopping center with a super market and a couple of restaurants. Hotel is right next to the highway exit"
United States
Evan
The price is NZ$154
8 Mar - 9 Mar
Hotel Route Inn Iwata Inter
View from property

Marugen

Marugen
2.0 star property
Iwata
8.6 out of 10, Excellent, (24 reviews)
"スタッフは、とても親切でしたし、サービスが、いきとどいていました。24時間いつでも、入浴できるのはとても有難かったです。 犬も泊まれて最高👍"
Japan
Kayoko
Marugen
Lobby

GREENITY IWATA

GREENITY IWATA
3.0 star property
Iwata
9.8 out of 10, Exceptional, (34 reviews)
"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 NZ$250
31 Mar - 1 Apr
GREENITY IWATA
Spa

Hiranoya

Hiranoya
4.0 star property
Gamagori
7.8 out of 10, Good, (118 reviews)
"Yosh"
United States
Eric
The price is NZ$183
9 Mar - 10 Mar
Hiranoya
Free toiletries, hair dryer, slippers, electronic bidet

Tennomaru

Tennomaru
4.0 star property
Kota
8.8 out of 10, Excellent, (20 reviews)
"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 NZ$312
2 Mar - 3 Mar
Tennomaru
Spa

Tenku Kaiyu no Yado Suehiro

Tenku Kaiyu no Yado Suehiro
3.5 star property
Nishiuracho
7.8 out of 10, Good, (55 reviews)
"Great dinner and breakfast. Enomous amount of food, including steak, lobster, fish, pork, rice, soup, dessert. Roof top onsen has a great view. The hotel is also walk distance to a famous sunset viewing spot. The room is a little bit old but clean and nice."
Saudi Arabia
Tyler Francis
Tenku Kaiyu no Yado Suehiro
Suite | Bathroom

Kaze no Tani no Iori

Kaze no Tani no Iori
4.0 star property
Kota
9.0 out of 10, Wonderful, (4 reviews)
"昨年から訪れ始めて今回が３度目です。何をとっても最高です。"
Japan
NORIAKI
The price is NZ$933
3 Mar - 4 Mar
Kaze no Tani no Iori
Front View Suite, Ocean View, East Wing

Hotel Meizanso

Hotel Meizanso
3.5 star property
Gamagori
9.0 out of 10, Wonderful, (18 reviews)
"Wonderful hotel and room. Great view of ocean. Onsen was really nice. Japanese breakfasts and dinners outstanding. Staff so very nice and helpful. I hope to go back some day. "
United States
Sally
The price is NZ$359
9 Mar - 10 Mar
Hotel Meizanso
Lobby sitting area

Tabist Katahara Resort Gamagori

Tabist Katahara Resort Gamagori
2.5 star property
Gamagori
6.2 out of 10, (24 reviews)
"Considering the price, it makes sense"
Japan
しんいち
The price is NZ$125
24 Mar - 25 Mar
Tabist Katahara Resort Gamagori
Japanese-style House , Ocean View

Gamagori Classic Hotel

Gamagori Classic Hotel
3.0 star property
Gamagori
8.2 out of 10, Very good, (19 reviews)
"古い建物であるが客室の清掃などは行き届きアメニティも充実、しかしなから廊下ドア建具など大きな補修が必要な所も多々ある。 夕食時メインダイニングにヴァイオリンの生演奏があり夜景を望む席でとても良かったです。"
Japan
Noriko
The price is NZ$472
3 Mar - 4 Mar
Gamagori Classic Hotel
Public bath

Hotel Route Inn Shinshiro

Hotel Route Inn Shinshiro
3.0 star property
Shinshiro
9.2 out of 10, Wonderful, (478 reviews)
"Very clean and very friendly staff."
United States
Jeremiah
The price is NZ$133
15 Mar - 16 Mar
Hotel Route Inn Shinshiro
Courtyard

Henn na Hotel Lagunatenbosch

Henn na Hotel Lagunatenbosch
3.0 star property
Gamagori
8.2 out of 10, Very good, (192 reviews)
"Starting from entrance our baby really love it because of realistic Dinosaur’s that welcoming every guest,I was also surprised of a spacious room & very clean room very relaxing, And my husband really loved the breakfast a lot of choices and they prepared it perfect. "
United States
Carina
The price is NZ$262
8 Mar - 9 Mar
Henn na Hotel Lagunatenbosch
Hot springs

Hotel Tatsuki

Hotel Tatsuki
3.0 star property
Nishiuracho
6.0 out of 10, (2 reviews)
"色々な温泉宿に行きましたが、食事最高でした。食べきれない位、量と質。老舗とあって、建物は古いですが、 また行きたいです。"
Japan
ミナミ
The price is NZ$547
8 Mar - 9 Mar
Hotel Tatsuki
Public bath

Gamagori Hotel

Gamagori Hotel
3.0 star property
Gamagori
6.8 out of 10, (126 reviews)
"Quiet comfortable"
United States
Mario
The price is NZ$109
2 Mar - 3 Mar
Gamagori Hotel
Lounge

shunkeiroman ginpaso

shunkeiroman ginpaso
3.0 star property
Nishiuracho
10.0 out of 10, Exceptional, (2 reviews)
"スタッフの対応良かったです。景観よかったです。清潔で快適に過ごせました。"
Japan
HIROTAKA
The price is NZ$856
2 Mar - 3 Mar
shunkeiroman ginpaso
3 restaurants, breakfast, lunch, dinner served; Italian cuisine

Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu
4.5 star property
Naka Ward
9.0 out of 10, Wonderful, (1,001 reviews)
"Great place to stay!"
Spain
F. J.
The price is NZ$219
8 Mar - 9 Mar
Okura Act City Hotel 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 care-free afternoon at Arai Beach during your travels in Kosai?
See properties

Arai Benten Beach

Why not spend a care-free 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

Dormy Inn EXPRESS Toyohashi Hot Spring

Dormy Inn EXPRESS Toyohashi Hot Spring

10/10 Excellent
"Nice size room and friendly staff!"
Matthew 1-night trip
Posted 12 days ago
Dormy Inn EXPRESS Toyohashi Hot Spring

More cheap accommodation in Kosai

Hotel South Garden Hamamatsu

Hotel South Garden Hamamatsu

325-30 Sunayamacho Hamamatsu Shizuoka
The price is NZ$66 per night from 29 Mar to 30 Mar
NZ$66
29 Mar - 30 Mar
7.8/10 Good! (44 reviews)

Frequently asked questions

What's the best place for a stay in Kosai?
Based on our traveller 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 holiday rentals that Kosai has to offer?
Shell Beach Hamana Lake Relax with the sound of - Osaki Villa / Hamamatsu Shizuoka: This holiday home rental outside of Kosai offers a garden, a BBQ 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! The majority of hotel room reservations are fully refundable provided that you cancel prior to the hotel's cancellation deadline, which is often 24 or 48 hours before your arrival date. If you booked a non-refundable reservation, you may still be able to cancel and be given a refund within 24 hours of booking. Filter your search by fully refundable to find flexible hotel deals in Kosai.
What are some accommodation options with pools in Kosai?
Grand Mercure Lake Hamana Resort & Spa: Hotel, 1-minute walk from Lake Hamana. Offers a children's pool, a seasonal outdoor pool and spa services. View all hotels with pools in Kosai.
What's it like staying in Kosai?
Visitors can enjoy all that Kosai has to offer, including its beaches. In Kosai, there are 8 hotels and other accommodation options to choose from. Find out more about Kosai.
What should I see while I'm in 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. Take a look at what more there is 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 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.