Kosai Holidays

Book a Hotel + Flight or Car together to unlock savings

  • Plan, book, travel with confidence

    • payments icon
    Better together
    Save up to AU$703 when you book a flight and hotel together*
    lob hotels icon
    Find the right fit
    With over 300,000 hotels worldwide, it's easy to create a perfect package
    lob packages icon
    Rest easy
    Plan, book, and manage your trip all in one place

Your Kosai Holiday

Well known for its coastal scenery and unspoiled nature, Kosai is a fantastic getaway destination. Book one of our Kosai holiday packages and enjoy all that this impressive city has to offer. If your trip to Kosai includes a little sightseeing, drop by much-loved attractions like Arai Benten Beach, Arai Beach and Maisaka-shuku Waki-Honjin. Don't put off visiting this destination any longer. Your ultimate Kosai holiday is just a few clicks away with Expedia.

Kosai Holiday

Kosai Beach Holiday

Forget about the stresses of daily life and let your mind, body and soul unwind on your Kosai holiday. There's nothing more invigorating than a cool ocean breeze and the soothing sound of waves crashing onto the shore. Organise your trip to Kosai the easy way by locking in one of our Kosai holiday packages. Many people decide to base themselves near Arai Benten Beach, a local highlight only 6 kilometres from the city centre.

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 holiday 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 holiday 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
10ºC
Max Temp Summer
27ºC
Top Sights
Hamanako Palpal Theme Park, Hamamatsu Castle and Hamamatsu City Zoo

Our pick of the best Kosai Hotel Deals

Hotel Route Inn Hamanako
Hotel Route Inn Hamanako
3 out of 5
1049-1, Komi, Kosai, Shizuoka-ken
The price is AU$130 per night from 30 Mar to 31 Mar
AU$130
includes taxes & fees
30 Mar - 31 Mar
8/10 Very Good! (172 reviews)
"過ごしやすかった"

Reviewed on 21 Mar. 2025

Hotel Route Inn Hamanako
Tabist Kosai Hamanako no Yado
Tabist Kosai Hamanako no Yado
2 out of 5
1253-1 Ochiba, Kosai, Shizuoka
Fully refundableReserve now, pay when you stay
The price is AU$55 per night from 31 Mar to 1 Apr
AU$55
includes taxes & fees
31 Mar - 1 Apr
6.8/10 (44 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 10 Feb. 2025

Tabist Kosai Hamanako no Yado
Grand Mercure Lake Hamana Resort & Spa
Grand Mercure Lake Hamana Resort & Spa
4 out of 5
4396-1 Yamazaki, Yuto-cho, Chuo-ku, Hamamatsu
Fully refundableReserve now, pay when you stay
The price is AU$154 per night from 10 Apr to 11 Apr
AU$154
includes taxes & fees
10 Apr - 11 Apr
8/10 Very Good! (472 reviews)
"Nice clean and warm, room, friendly staff. Lovely breakfast"

Reviewed on 30 Nov. 2024

Grand Mercure Lake Hamana Resort & Spa
See all 178 properties in Kosai
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.
All Inclusive Holidays

All Inclusive Holidays

All Inclusive Holidays
Cheap Holidays

Cheap Holidays

Cheap Holidays
beach holidays

Beach Holidays

Beach Holidays

Frequently asked questions

How much does a Kosai holiday package cost?
You can grab a holiday package to this top destination on Expedia. However, how much your holiday to Kosai costs will depend on the season, length of stay and hotel choice.
What are the cheapest months to go to Kosai?
To score cheap Kosai holiday packages, plan your trip outside of peak periods like public holidays and major festivals. You’ll typically find better availability and lower prices for flights and hotels.
How many days is enough for Kosai?
The ideal length for your Kosai holiday depends on what you’d like to do and see. Usually, a few days to a week will give you time to check out all the top sights and explore some hidden treasures 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 holiday as a package?
You can enjoy significant savings on your Kosai break by booking a tailored holiday 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 holiday package to Kosai?
If you’ve got your Kosai holiday 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 travelling on a whim.
How to plan a trip to Kosai?

  1. Choose the perfect time to travel: Your schedule, favourite season and the type of weather you enjoy can all influence your decision on when to visit Kosai.
  2. Work out your budget: Make sure you have enough money to pay for everything from dining out and transportation to airfares and activities. Your accommodation will likely be the biggest expense during your trip to Kosai.
  3. Decide how long to go away for: Now that you’re up to speed on Kosai, you can figure out the perfect length of your break. Put together a rough plan and allocate enough time to get through everything on your must-do list.
  4. Bundle your flights and hotel: Epic destination, check. Length of stay, check. All that’s left now is to pick a Kosai holiday package that brings all your bookings together.

* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages.