Kosai Vacations from $402
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Your Kosai Vacation
Well known for its coastal scenery and unspoiled nature, Kosai is an excellent getaway destination. Book one of our Kosai vacation packages and uncover all that this lively city has to offer. If sightseeing is on the to-do list during your trip to Kosai, swing by leading attractions like Maisaka Beach, Arai Beach and Sakichi Toyoda Memorial House. No matter your travel plans or the size of your budget, organizing a tailored Kosai vacation is a piece of cake with Expedia.
The Latest Kosai vacation packages
Price found within the past 48 hours. Click for updated prices.
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?
Arai Benten Beach
7.0/10 (2 reviews)
Why not spend a carefree afternoon at Arai Benten Beach during your travels in Kosai?
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.
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.
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.
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.
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.
Kosai Hotel Deals
Tabist Kosai Hamanako no Yado
1253-1 Ochiba Kosai Shizuoka
$25 nightly
$28 total
Sep 1 - Sep 2
7/10 Good! (51 reviews)
Good overall
"It's was really good, I forgot to ask for an early check-in but theh saw me sitting outside waiting let me check in early which was super nice, I did nock to ask if I could leave my bags but the only staff there at the time was deaf, so that's okay. The room was good and comfy and warm. And the bath ..."
Reviewed on Feb 10, 2025
Hotel Route Inn Hamanako
1049-1, Komi Kosai Shizuoka-ken
Fully refundableReserve now, pay when you stay
$74 nightly
$81 total
Aug 30 - Aug 31
Hotel Associa Toyohashi
Nishijuku-cho, Hanada-cho Toyohashi Aichi-ken
$61 nightly
$67 total
Aug 26 - Aug 27
9/10 Wonderful! (1,018 reviews)
"아주 깔끔한 숙소였습니다. 위치도 역앞이라 편했습니다."
Reviewed on Aug 13, 2026
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.
Find the Best Kosai Vacation Packages
Kosai Beach Vacation
Forget about the stresses of daily life and let your mind, body and soul unwind on your Kosai vacation. There's nothing more invigorating than a cool ocean breeze and the soothing sound of waves crashing onto the shore. Organize your trip to Kosai the easy way by locking in one of our Kosai vacation packages. Many people decide to base themselves near Arai Benten Beach, a local highlight only 4 miles (7 km) from the city center.
Things You Should Know About Kosai
- If you've been dreaming of that seaside lifestyle, check out our Kosai beach hotels. Water views and salty sea air — what more could you want?
- Our hotels, like The Villa Hamanako and Kuretake Inn Hamanako, are a hit with visitors of all types. Check out the facilities and get ready for your vacation in Kosai!
- Around 43,700 people live in Kosai. If you'd like some tips about what to see and do around these parts, why not chat to a couple of the locals? Our Kosai things to do page is also a handy source of information.
- Kosai vacation deals are one of the best ways to save on incredible experiences. Some ideas, such as Arai Benten Beach, Myoryuji Temple and Ogaji Temple, should be at the very top of your to-do list.
Kosai Essential Information
Language | Japanese |
|---|---|
Currency | Japanese yens |
Local Welcome | Konnichiwa |
Local Goodbye | Sayōnara |
Population | 43,700 |
Max Temp Winter | 50ºF |
Max Temp Summer | 80ºF |
Top Sights | Hamanako Palpal Theme Park, Hamamatsu Castle and Hamamatsu City Zoo |
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Frequently asked questions
How much does a Kosai vacation package cost?
You can grab a vacation package to this top destination from $402 on Expedia. However, how much your vacation to Kosai costs will depend on the season, length of stay and hotel choice.
What are the cheapest months to go to Kosai?
You can generally find reduced prices and greater availability in December, January and February. Take a look at our cheap Kosai vacation packages and you could score some excellent off-season deals.
How many days is enough for Kosai?
The ideal duration for your Kosai vacation depends on what you'd like to see. Typically, a handful of days to a week will give you enough time to check out all the main sights and discover some hidden spots along the way.
How to find the best Kosai package deals?
Begin your search for a Kosai package deal by entering your destination and preferred travel dates under our "Packages" tab. Then select some filters, like "Property type" and "Guest rating," to fine-tune the results to your exact needs. You can also sort by "Package discount" and browse offers that come with unbeatable savings. If you don't find the perfect Kosai package deal right away, just tweak your dates and search again. Remember that deals are only available for a limited time, so book early and get your Kosai getaway off to a flying start.
Is it cheaper to book a Kosai vacation as a package?
You can enjoy significant savings on your Kosai break by booking a tailored vacation package. Check the "Package" heading, then select your travel dates and destination to view some great hotel prices and airfares. Bundle everything into a great-value package and you can save hundreds of dollars. Consider adding a car rental and you may land a better deal.
When to book a vacation package to Kosai?
If you've got your Kosai vacation dates confirmed, book early to grab some awesome deals. With Expedia, you can generally reserve some flights up to one year in advance. Prefer spontaneous trips? Our last-minute deals are ideal for traveling on a whim.
Does Expedia offer Book Now, Pay Later Kosai vacation packages?
Jet off on your dream getaway to Kosai with help from our Book Now, Pay Later vacations. There's no need to save like crazy or wait until the next payday — we've partnered with online lender Affirm to offer you financial flexibility. Our vacation packages with payment plans allow you to spread the cost over 3, 6 or 12 months. With no late payment fees or hidden charges, you can easily stick to your budget and snag great deals while they last.
Explore a world of travel with Expedia
- Hotels near Ryuyokaiyo Park
- Hotels near Kamoe-ji Temple
- Hotels near Hamanako Palpal Theme Park
- Hamanako Kanzanji Onsen Hotels
- Resorts & Hotels with Spas in Hamanako Kanzanji Onsen
- Hotels near Hamamatsu Arena
- Hotels near Lake Hamana
- All-Inclusive Resorts in Kosai
- Hotels near Hamamatsu Flower Park
- Hotels near Hamamatsu Station
- Hotels near Act Tower
- Hotels near Hamamatsu JASDF Air Park and Museum
- Hamamatsu Arena
- Kamono Mabuchi Memorial Hall
- Ryuyo Insect Nature Observation Park
- Hamamatsu City Zoo
- Visit Waji
- Hamamatsu Flower Park
- Visit Hamanako Kanzanji Onsen
- Hamamatsu JASDF Air Park and Museum
- Visit Higashi
- Visit Murakushi
- Act Tower
- Bentenjima Seaside Park
- Hamamatsu Diorama Factory Museum
- Kamoe-Ji Temple
- Hamamatsu Museum of Musical Instruments
- Visit Kosai
- Sakichi Toyoda Memorial House
- Atago Shrine
- Hamamatsu Fruit Park Tokinosumika
- Hamanako Garden Park
- Hamanako Palpal Theme Park
- Visit Nishi Ward
- Visit Naka Ward
* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages.
