Find hotels in Kosai from $30

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Our top choices for Kosai hotels

Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado
2.0 star property
Kosai
7.0 out of 10, Good, (45)
"Wonderful hotel. Very quiet. Our room was huge!"
United States
Sigrid
$27 nightly
The price is $30
Jan 4 - Jan 5, 2026
Tabist Kosai Hamanako no Yado

Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
3.0 star property
Kosai
8.0 out of 10, Very Good, (186)
"very good"
Japan
たく
$64 nightly
The price is $70
Jan 25 - Jan 26, 2026
Hotel Route Inn Hamanako

Tabist IWATA Station Hotel

Tabist IWATA Station Hotel
3.5 star property
Iwata
7.2 out of 10, Good, (151)
"it's reasonable. "
Japan
Takatosi
$46 nightly
The price is $51
Dec 29 - Dec 30
Tabist IWATA Station Hotel

Kuretake Inn Iwata

Kuretake Inn Iwata
3.0 star property
Iwata
8.4 out of 10, Very Good, (65)
"The hotel and room were nice. The front desk staff was very helpful in securing us transportation for the following morning. "
United States
Wayne
$113 nightly
The price is $125
Jan 9 - Jan 10, 2026
Kuretake Inn Iwata

Hotel Route Inn Iwata Inter

Hotel Route Inn Iwata Inter
3.0 star property
Iwata
8.4 out of 10, Very Good, (183)
"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
$82 nightly
The price is $90
Jan 25 - Jan 26, 2026
Hotel Route Inn Iwata Inter

Marugen

Marugen
2.0 star property
Iwata
8.6 out of 10, Excellent, (23)
"近くの釣りスポットに行きやすかったです!"
Japan
mathui
Marugen

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
$115 nightly
The price is $127
Jan 25 - Jan 26, 2026
GREENITY IWATA

Tennomaru

Tennomaru
4.0 star property
Kota
9.0 out of 10, Wonderful, (19)
"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
$170 nightly
The price is $187
Jan 12 - Jan 13, 2026
Tennomaru

Kaze no Tani no Iori

Kaze no Tani no Iori
4.0 star property
Kota
9.0 out of 10, Wonderful, (4)
"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
$458 nightly
The price is $504
Jan 12 - Jan 13, 2026
Kaze no Tani no Iori

Hiranoya

Hiranoya
4.0 star property
Gamagori
7.8 out of 10, Good, (116)
"Yosh"
United States
Eric
$92 nightly
The price is $104
Jan 5 - Jan 6, 2026
Hiranoya

Tenku Kaiyu no Yado Suehiro

Tenku Kaiyu no Yado Suehiro
3.5 star property
Nishiuracho
7.8 out of 10, Good, (54)
"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

Hotel Meizanso

Hotel Meizanso
3.5 star property
Gamagori
9.0 out of 10, Wonderful, (17)
"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
$191 nightly
The price is $214
Jan 4 - Jan 5, 2026
Hotel Meizanso

Tabist Katahara Resort Gamagori

Tabist Katahara Resort Gamagori
2.5 star property
Gamagori
6.6 out of 10, (22)
"Considering the price, it makes sense"
Japan
しんいち
$46 nightly
The price is $51
Jan 11 - Jan 12, 2026
Tabist Katahara Resort Gamagori

Gamagori Classic Hotel

Gamagori Classic Hotel
3.0 star property
Gamagori
8.0 out of 10, Very Good, (16)
"竹島へのロケーションがとても良い"
Japan
??
$245 nightly
The price is $269
Jan 12 - Jan 13, 2026
Gamagori Classic Hotel

Hotel Route Inn Shinshiro

Hotel Route Inn Shinshiro
3.0 star property
Shinshiro
9.2 out of 10, Wonderful, (473)
"Nice spa, with free breakfast and a coffee area lounge. "
United States
Dwight
$73 nightly
The price is $81
Jan 3 - Jan 4, 2026
Hotel Route Inn Shinshiro

Hotel Tatsuki

Hotel Tatsuki
3.0 star property
Nishiuracho
6.0 out of 10, (2)
"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
$295 nightly
The price is $328
Jan 5 - Jan 6, 2026
Hotel Tatsuki

Henn na Hotel Lagunatenbosch

Henn na Hotel Lagunatenbosch
3.0 star property
Gamagori
8.2 out of 10, Very Good, (190)
"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
$143 nightly
The price is $158
Jan 9 - Jan 10, 2026
Henn na Hotel Lagunatenbosch

Hoshino Resorts KAI Enshu

Hoshino Resorts KAI Enshu
4.0 star property
Nishi Ward
10.0 out of 10, Exceptional, (21)
"Beautiful resort with a nice Onsen."
United States
Janet
$505 nightly
The price is $558
Jan 7 - Jan 8, 2026
Hoshino Resorts KAI Enshu

Gamagori Hotel

Gamagori Hotel
3.0 star property
Gamagori
6.8 out of 10, (122)
"Quiet comfortable"
United States
Mario
$58 nightly
The price is $65
Jan 5 - Jan 6, 2026
Gamagori Hotel

Hamanako Wan Wan Paradise Hotel

Hamanako Wan Wan Paradise Hotel
3.0 star property
Nishi Ward
8.4 out of 10, Very Good, (45)
"スタッフの対応"
Japan
yukie
$120 nightly
The price is $135
Jan 9 - Jan 10, 2026
Hamanako Wan Wan Paradise Hotel
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Stay near popular Kosai attractions

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.

Top Kosai Hotel Reviews

More cheap stays in Kosai

Frequently asked questions

What are the best hotels in Kosai that travelers recommend?
Hotel Route Inn Hamanako is a popular choice among travelers in Kosai, Japan, earning an 8.0 review score. This welcoming hotel features essential amenities like air conditioning to ensure a comfortable stay. Guests appreciate the attentive service, making it a reliable base for exploring the beautiful surroundings of Shizuoka-ken.
What are the top pet-friendly hotels in Kosai?
Hotel Route Inn Hamanako in Kosai, Japan, is a delightful option for pet owners seeking a comfortable stay. This hotel not only welcomes furry companions but also offers a host of amenities that cater to both guests and their pets. With free self-parking and complimentary Wi-Fi in the rooms, you can enjoy easy access and connectivity throughout your stay. See more pet-friendly hotels in Kosai.
What are the best budget hotels in Kosai?
Hotel Route Inn Hamanako in Kosai is a charming choice for travelers seeking budget-friendly accommodations without compromising on comfort. This hotel boasts an excellent review score of 8.0, reflecting its dedication to providing a pleasant stay. Guests appreciate the free Wi-Fi in rooms, ensuring connectivity for both leisure and work, while the air-conditioned spaces offer a refreshing retreat after a day of exploration. View all budget hotels in Kosai.
When is the best time to go to Kosai?
The most popular time to visit Kosai is during the summer months, particularly in July. This is when the region comes alive with vibrant festivals, outdoor activities, and warm weather, with average temperatures reaching around 80°F. Such delightful conditions make it great for exploring the scenic coastline, enjoying beach activities, or wandering through the charming streets lined with local shops and cafes.

During the peak season, which runs from June to August, tourists flock to Kosai to take advantage of the sun-soaked days. While this means the area can be busier, it also provides a lively atmosphere that many travelers find enchanting. Engaging in water sports, visiting nearby islands, or simply lounging on the beach can be a fantastic way to immerse yourself in the local culture and natural beauty.

If you're looking for a potential cost-saving option, consider visiting in October. This month often sees fewer crowds while still offering pleasant weather, allowing you to enjoy the stunning landscapes and cultural offerings at a more relaxed pace. The fall foliage can also add a beautiful backdrop to your adventures, enhancing your sightseeing experience.
Can I cancel my hotel reservation on Expedia?
Many Expedia hotel reservations are refundable, provided that you cancel before the hotel's cancellation deadline – this is often within 24-48 hours of your scheduled arrival. If you have a non-refundable booking, it might still be possible to receive a refund if you cancel it within 24 hours of booking. Be sure to check your booking confirmation for the exact cancellation policy. For maximum flexibility, use our "Fully refundable property" filter during your search to find the right Kosai hotel for you.
How can I save on a Kosai hotel booking with Expedia?
One Key™ - Expedia's free travel rewards program - gives you instant access to perks and Member Prices on Kosai hotels. Plus, you'll earn OneKeyCash™* on eligible bookings to use on future trips. Booking an Expedia hotel and flight package is another great way to save, where bundling can result in significant savings.

*OneKeyCash is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
How much is the nightly rate at a Kosai hotel?
Prices for hotels in Kosai often vary, but you can find a great deal from $30 on Expedia. All sorts of factors affect price, such as the time of year or the days of the week you choose for your stay. Find the best deals by being flexible with your dates, and sort search results by "Price: low to high" for the cheapest rate.

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