A shrine in Otsu, Shiga, Japan, with the Japanese writing "Karasaki Shrine." The shrine overlooks Lake Biwa.

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Check prices for these dates

Next weekend
26 June - 28 June
In two weeks
3 July - 5 July

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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
7.0 out of 10, Good, (49 reviews)
"Wonderful hotel. Very quiet. Our room was huge!"
United States
Sigrid
The price is AU$39
22 June - 23 June
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, (200 reviews)
"Quite place & clean ,Parking is wide"
Japan
RESTITUTA BULFA
The price is AU$105
26 June - 27 June
Hotel Route Inn Hamanako
Property amenity

Comfort Hotel Toyokawa

Comfort Hotel Toyokawa
3.0 star property
Toyokawa
8.6 out of 10, Excellent, (132 reviews)
"Simple but reliable and good hotel for a fair price. "
United States
Henry
The price is AU$70
21 June - 22 June
Comfort Hotel Toyokawa
Private kitchen

Lake&Mountain Hamamatsui inn

Lake&Mountain Hamamatsui inn
2.0 star property
Kita Ward
10.0 out of 10, Exceptional, (1 review)
"いなさ湖のバス釣りで泊まり込みできました。 近くて、快適、設備もないです。 何より安いです。 また泊まります。"
Japan
Koji
The price is AU$60
28 June - 29 June
Lake&Mountain Hamamatsui inn
View from property

Marugen

Marugen
2.0 star property
Iwata
8.2 out of 10, Very good, (29 reviews)
"洗面台ハンドル水漏れ、コンセント割れ危ない。窓網戸があまりに汚くさわる気にならない。カーテンをあけることはなかった。口コミは良い印象だったが、実際はそうでもなくて残念。値段が安くても最低限清潔にはしておいてほしい。"
Japan
Masahiro
The price is AU$122
21 June - 22 June
Marugen
Public bath

Hotel Route Inn Shinshiro

Hotel Route Inn Shinshiro
3.0 star property
Shinshiro
9.2 out of 10, Wonderful, (486 reviews)
"Very clean and very friendly staff."
United States
Jeremiah
The price is AU$100
21 July - 22 July
Hotel Route Inn Shinshiro
Classic Suite, Multiple Beds (Japanese Western Style)

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, (663 reviews)
"Nice place, clean room and great facilities around the hotel complex. Free parking. Awesome breakfast with choices of different cuisine. "
Australia
Edmond
The price is AU$80
15 July - 16 July
Grand Mercure Lake Hamana Resort & Spa
Exterior

Toyokawa Grand Hotel

Toyokawa Grand Hotel
2.5 star property
Toyokawa
7.0 out of 10, Good, (4 reviews)
The price is AU$100
22 June - 23 June
Toyokawa Grand Hotel
Lobby

GREENITY IWATA

GREENITY IWATA
3.0 star property
Iwata
9.8 out of 10, Exceptional, (44 reviews)
"Immaculate facilities from rooms to the really awesome onsen. Only complaint is the WiFi is slow and not useable at times. Also, having a car here is advised. And there is plenty of free parking. "
United States
Mark
The price is AU$189
25 June - 26 June
GREENITY IWATA
Free daily continental breakfast

Tabist IWATA Station Hotel

Tabist IWATA Station Hotel
3.5 star property
Iwata
7.2 out of 10, Good, (164 reviews)
"Convenient location near the train station and the staff were all really friendly "
United Kingdom
Jamie Lee
The price is AU$71
22 June - 23 June
Tabist IWATA Station Hotel
Free WiFi, bed sheets

Kuretake Inn Hamamatsu Nishi Inter

Kuretake Inn Hamamatsu Nishi Inter
3.0 star property
Naka Ward
8.0 out of 10, Very good, (166 reviews)
"ワンドリンクサービスが良いです。"
Japan
Mami
The price is AU$188
28 June - 29 June
Kuretake Inn Hamamatsu Nishi Inter
Lift

Toyoko Inn Hamamatsu-eki Minami-guchi

Toyoko Inn Hamamatsu-eki Minami-guchi
3.0 star property
Naka Ward
9.2 out of 10, Wonderful, (5 reviews)
"とにかくスタッフの方の対応が良く、気持ちよく過ごせました。"
Japan
Takako
The price is AU$90
21 July - 22 July
Toyoko Inn Hamamatsu-eki Minami-guchi
Property amenity

Comfort Hotel Hamamatsu

Comfort Hotel Hamamatsu
3.0 star property
Naka Ward
8.6 out of 10, Excellent, (487 reviews)
"Perfect stay for both business and personal."
United States
YASUHIDE
The price is AU$62
29 June - 30 June
Comfort Hotel Hamamatsu
Free toiletries, hair dryer, slippers, electronic bidet

Tennomaru

Tennomaru
4.0 star property
Kota
8.8 out of 10, Excellent, (23 reviews)
"露天風呂が熱くて入れなかったのが残念。 部屋からの景色は良かったです。"
Japan
サトシ
The price is AU$253
15 July - 16 July
Tennomaru
Spa

Hazu Gassyo

Hazu Gassyo
3.0 star property
Shinshiro
8.8 out of 10, Excellent, (5 reviews)
"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 traveller
The price is AU$609
28 June - 29 June
Hazu Gassyo
Reception

Hotel Route Inn Hamamatsunishi Inter

Hotel Route Inn Hamamatsunishi Inter
3.0 star property
Nishi Ward
8.4 out of 10, Very good, (246 reviews)
"Facility is clean"
Japan
Takatsugu
The price is AU$113
21 June - 22 June
Hotel Route Inn Hamamatsunishi Inter
Exterior

Comfort Hotel Toyohashi

Comfort Hotel Toyohashi
3.0 star property
Toyohashi
8.8 out of 10, Excellent, (240 reviews)
"Room spacious & comfortable. Spotless presentation. Staff accommodating & helpful. Have stayed here before & would definitely come again. Visiting family in the area. Breakfast adequate - limited for vegetarians; still able to find enough to satisfy. "
Australia
Jeanette
The price is AU$65
28 June - 29 June
Comfort Hotel Toyohashi
Public bath

Gamagori Hotel

Gamagori Hotel
3.0 star property
Gamagori
6.8 out of 10, (131 reviews)
"Quiet comfortable"
United States
Mario
The price is AU$90
28 June - 29 June
Gamagori Hotel
Luxury Tent

villa vacances hamanako

villa vacances hamanako
5.0 star property
Nishi Ward
The price is AU$1,058
22 June - 23 June
villa vacances hamanako
Exterior

Hotel Associa Toyohashi

Hotel Associa Toyohashi
4.0 star property
Toyohashi
9.0 out of 10, Wonderful, (1,000 reviews)
"Great location, at the train station, close to shops and tram. Would definitely stay again"
Australia
Bradley
The price is AU$103
28 June - 29 June
Hotel Associa Toyohashi
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

7.0/5 (2 reviews)
Why not spend a care-free afternoon at Arai 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

Comfort Hotel Hamamatsu

Comfort Hotel Hamamatsu

10/10 Excellent
"Good"
Hiromichi 1-night trip
Posted 3 days ago
Comfort Hotel Hamamatsu

More cheap accommodation in Kosai

Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado

1253-1 Ochiba Kosai Shizuoka
The price is AU$39 per night from 22 June to 23 June
AU$39
22 June - 23 June
7/10 Good! (49 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?
CORRUGATED HOUSE - CORRUGATED HOUSE / Toyohashi Aichi: This holiday home rental outside of 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! 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: 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 Arai Beach, Lake Hamana 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.

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